LG-UUA1 Air Conditioner
ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH
INSTALLATION MANUALAIR CONDITIONER
ES TINA NEDERLANDS POLSKI LIMBA ROMÂN
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.Single Inverter Outdoor Unit Original instruction (R32)[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
MFL71675701 Rev.00_101520
www.lg.comCopyright © 2019 – 2020 LG Electronics Inc. All Rights Reserved.
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2 MODEL DESIGNATIONMODEL DESIGNATIONProduct information– Product Name : Air conditioner – Model Name :U U D 1 U3 0Serial number Outdoor unit chassis name Electrical rating 1 : 1Ø, 220-240V, 50Hz 3 : 3Ø, 380-415V, 50Hz Module name & Nominal capacity range based on `kBtu/h’ A : 9~18 B : 18~30 C : 24~36 D : 36~60 Type U : Outdoor unit Model Type U : Universal model– Additional Information : serial number is refer to the barcode on the product.– Max allowable pressure High side : 4.2 MPa / 4.32 MPa (it can be different by model)– Max allowable pressure Low side : 2.4 MPa – Refrigerant : R32
Airborne Noise EmissionThe A-weighted sound pressure emitted by this product is below 70 dB.** The noise level can vary depending on the site.The figures quoted are emission level and are not necessarily safe working levels.Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not further precautions are required.Factor that influence the actual level of exposure of the workforce include the characteristics of the work room and the other sources of noise, i.e. the number of equipment and other adjacent processes and the length of time for which an operator exposed to the noise. Also, the permissible exposure level can vary from country to country.This information, however, will enable the user of the equipment to make a better evaluation of the hazard and risk.
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TIPS FOR SAVING ENERGY 3TIPS FOR SAVING ENERGYHere 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:· Excessive cooling may be harmful to 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 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 airconditioner is used for many hours. · Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter mayblock the air flow or weaken the cooling / dehumidifying functions.For your recordsStaple 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 labeled on the side of each unit. Dealer’s name : Date of purchase :
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4 IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
Read the precautions in this manual carefully before operating the unit.This symbol indicates that the Operation Manual should be read carefully.
This appliance is filled with flammable refrigerant. (for R32)This symbol indicates that a service person should be handling this equipment with reference to the Installation Manual.
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product.
! WARNINGSerious injury or death can result if directions are ignores.
! CAUTIONMinor injury or product damage can result if directions are ignored.
! WARNING· Installation or repairs made by unqualified persons can result in hazards to you and others. Refrigeration work must be performed by a qualified person who is “F-Gas” registered.· Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.· 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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IMPORTANT SAFETY INSTRUCTIONS 5· Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death. (for R32)· Compliance with national gas regulations shall be observedInstallation · Do not use a defective or underrated circuit breaker. Use thecorrectly rated breaker and fuse. 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 by yourself. There is risk of fire or electric shock. · Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire. There is risk of fire or electric shock. · Install the panel and the cover of control box securely. There is risk of fire or electric shock due to dust , water etc. · Use the correctly rated breaker or fuse. There is risk of fire or electric shock. · Do not modify or extend the power cable. If power cable is damaged or has deteriorated, then it must be replaced. There is risk of fire or electric shock. · For installation, removal or reinstall , 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. Be sure that the installation area does not deteriorate with age. It may cause product to fall.
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6 IMPORTANT SAFETY INSTRUCTIONS· Never install the outdoor unit on a moving base or a place from where it can fall down. The falling outdoor unit can cause damage or injury or even death of a person.· In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work. A charged capacitor can cause electrical shock.· When installing the unit, use the installation kit provided with the product. Otherwise the unit may fall and cause severe injury.· Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connection terminals. Improper or loose connections can cause heat generation or fire.· Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or svc and then tear away and throw away the plastic packaging bags. Children may play with them and cause injury.· Be sure to check the refrigerant to be used. Please read the label on the product. Incorrect refrigerant used can prevent the normal operation of the unit.· 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.· 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.
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IMPORTANT SAFETY INSTRUCTIONS 7· The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater)· Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.· Do not pierce or burn refrigerant cycle part. · Be aware that refrigerants may not contain an odour. · Keep any required ventilation openings clear of obstruction. · The appliance shall be stored in a well-ventilated area wherethe room size corresponds to the room area as specified for operation. (for R32) · The appliance should only be transported by two or more people holding the appliance. · Mechanical connections shall be accessible for maintenance purposes. · The appliance shall be disconnected from its power source during service and when replacing parts. · The appliance shall be installed in accordance with national wiring regulations.Operation · When the product is soaked (flooded or submerged) in water,contact an Authorized Service Center for repair before using it again. There is risk of fire or electric shock. · Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire. · Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking it out. There is risk of electric shock or fire.
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8 IMPORTANT SAFETY INSTRUCTIONS· Do not place a heater or other heating appliances near the power cable. There is risk of fire and electric shock.· Do not allow water to run into electric parts. Install the unit away from water sources. There is risk of fire, failure of the product, or electric shock.· Do not store or use or even allow flammable gas or combustibles near the product. There is risk of fire.· Do not use the product in a tightly closed space for a long time. Perform ventilation regularly. Oxygen deficiency could occur and hence harm your health.· Do not open the front grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.· If strange sound, smell or smoke comes from product. Immediately turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.· Ventilate the product room from time to time when operating it together with a stove, or heating element etc. Oxygen deficiency can occur and hence harm your health.· When the product is not to be used for a long time, disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation.· Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit. This could result in personal injury and product damage.· Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.· Do not place ANYTHING on the power cable. There is risk of fire or electric shock.
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IMPORTANT SAFETY INSTRUCTIONS 9· When flammable gas leaks, turn off the gas and open a window for ventilation before turning on the product. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.· Keep any required ventilation openings clear of obstruction · Turn off all devices that cause fire when the refrigerant leaks.,ventilate the room (example : opening the window or using the ventilation), and contact with dealer who you purchased the unit.! CAUTIONInstallation · Two or more people must lift and transport the product. Avoidpersonal injury. · Do not install the product where it will be exposed to seawind (salt spray) directly. It may cause corrosion on the product. · Install the drain hose to ensure that the condensed water is drained away properly. A bad connection may cause water leakage. · Keep level even when installing the product. To avoid vibration or noise. · Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods. It may cause a problem for your neighbors and hence dispute. · Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of product. · Please install safely at a place that can sufficiently endure the weight of the product. If the strength is not sufficient, the product may fall and cause injury.
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10 IMPORTANT SAFETY INSTRUCTIONS· Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification. (for R32)· Wear adequate personal protection equipment (PPE) when installing, maintaining or servicing the product.· This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.· Pipe-work shall be protected from physical damage. · Do not install the unit in potentially explosive atmospheres.Operation · Do not use the product for special purposes, such aspreserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of property. · Do not block the inlet or outlet of air flow. It may cause product failure. · Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric shock, or damage to the plastic parts of the product. · Do not touch the metal parts of the product when removing the air filter. There is risk of personal injury. · Do not step on or put anything on the product. (outdoor units) There is risk of personal injury and failure of product.
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IMPORTANT SAFETY INSTRUCTIONS 11· Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency.· Do not insert hands or other objects through the air inlet or outlet while the product is operating. There are sharp and moving parts that could cause personal injury.· Be cautious when unpacking and installing the product. Sharp edges could cause injury.· If the refrigerant gas leaks during repair, do not touch the leaking refrigerant gas. The refrigerant gas can cause frostbite (cold burn).· Do not tilt the unit when removing or uninstalling it. The condensed water inside can spill.· Do not mix air or gas other than the specified refrigerant used in the system. If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.· If the refrigerant gas leaks during the installation, ventilate the area immediately. Otherwise it can be harmful for your health.· Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.· Replace all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or product failure.· Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire. They may burn or explode.· If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.
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12 IMPORTANT SAFETY INSTRUCTIONS· If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.· 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.· Do not expose your skin or kids or plants to the cool or hot air draft. This could harm to your health.· Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.· Use a firm stool or ladder when cleaning, maintaining or repairing the product at height. Be careful and avoid personal injury.· The appliance shall be stored so as to prevent mechanical damage from occurring.· Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. (for R32)· This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.· Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
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TABLE OF CONTENTS 13TABLE OF CONTENTS2 MODEL DESIGNATION3 TIPS FOR SAVING ENERGY4 IMPORTANT SAFETY INSTRUCTIONS14 INSTALLATION15 INSTALLATION OF OUTDOOR UNIT21 CONNECTING PIPES21 Preparation of Piping 22 Connection of piping – Outdoor 23 Forming the piping24 WIRING CONNECTION24 Electrical Wiring 24 Connecting Cables between Indoor Unit and Outdoor Unit 27 Connecting the cable to Outdoor Unit28 LEAKAGE TEST AND EVACUATION28 Preparation 28 Leakage test 29 Evacuation30 TEST RUNNING32 INSTALLATION PI48533 FUNCTION33 DIP S/W Setting 35 Pump Down 36 Saving Power Consumption 37 Night Quiet Mode 38 Mode Lock40 INSTALLATION GUIDE AT THE SEASIDE41 SEASONAL WIND AND CAUTIONS IN WINTER
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14 INSTALLATION
INSTALLATION
Installation Tools
Figure
Name
Screw driver
Electric drill
Measuring tape, Knife Hole core drill Spanner Torque wrench
Figure
Name Multi-meterHexagonal wrenchAmmeterGas-leak detector Thermometer, Level Flaring tool set
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INSTALLATION OF OUTDOOR UNIT 15
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– 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 are respected.– 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.– Select a place that can sufficiently endure the weight and vibration of the outdoor unit and where even installation is possible.– Select a place that has no direct impact of snow or rain– Select a place with no danger of snowfall or icicle drop– Select a 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.SunroofMore than 300
! CAUTIONBe 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.
oFbesntcaecloers
More than 300
More than 600
More than 700
[unit : mm]
A > 200 mm (7-7/8 inch)
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16 INSTALLATION OF OUTDOOR UNIT
Piping length and the elevation
· Single Operation
1) Standard Inverter / High Inverter
ODU
Capacity (kBtu/h)
UUA1 UUB1 UUC1 UUD1/UUD3
9/12 18 24/30 36/42/48/60
Pipe Size mm(inch)
GasØ 9.52 (3/8) Ø 12.7(1/2) Ø 15.88 (5/8) Ø 15.88 (5/8)
LiquidØ 6.35 (1/4) Ø 6.35 (1/4) Ø 9.52 (3/8) Ø 9.52 (3/8)
Length A(m)Standard Max 7.5 20 7.5 30 7.5 50 7.5 85
Elevation B(m) Additona refrigerantStandard Max (g/m)
5
15 20
5
30 20
5
30 40
5
30 40
2) Compact Inverter
ODUUUA1 UUB1 UUC1
Capacity (kBtu/h)18 24/3036
Pipe Size mm(inch)
GasØ 12.7 (1/2) Ø 15.88 (5/8) Ø 15.88 (5/8)
LiquidØ 6.35 (1/4) Ø 9.52 (3/8) Ø 9.52 (3/8)
Length A(m)Standard Max 7.5 30 7.5 35 7.5 50
Elevation B(m) Standard Max
Additona refrigerant(g/m)
Connector Type
5
30 20
b
5
30 40
a, c
5
30 40
–
* Connector information
Connector
UUA1 UUB1
**09F **12F **18F **18F **24F **30F
a Ø 6.35 Ø 9.52X X X X O O
b Ø 9.52 Ø 12.7X X O X X X
c Ø 12.7 Ø15.88X X X X O O
ex.) UUA1 + CT18F
If installed tube is shorter than 7.5 m, additional charging is not necessary.Additional Refrigerant = [A-7.5 (m)] x Additional refrigerant (g/m)
Indoor unit
Outdoor unit
A
A
B
Outdoor unit Indoor unit
B
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INSTALLATION OF OUTDOOR UNIT 17Minimum floor area(for R32)– The appliance shall be installed, operated and stored in a room with a floor area larger than the minimum area.– Use the graph of table to determine the minimum area.Amin (m2) 600Floor standing500
400
300
200
100
Wall mounted
Ceiling mounted
0
m (kg)
0
1.224
2
3
4
5
6
7
8
– m : Total refrigerant amount in the system – Total refrigerant amount : factory refrigerant charge + additional refrigerant amount – Amin : minimum area for installation
Floor location
m (kg) Amin (m2)
< 1.224
–
1.224 12.9
1.4
16.82
1.6
21.97
1.8
27.80
2
34.32
2.2
41.53
2.4
49.42
2.6
58.00
2.8
67.27
3
77.22
3.2
87.86
3.4
99.19
3.6 111.20
3.8 123.90
4
137.29
4.2 151.36
4.4 166.12
Floor location
m (kg) Amin (m2)
4.6 181.56
4.8 197.70
5
214.51
5.2 232.02
5.4 250.21
5.6 269.09
5.8 288.65
6
308.90
6.2 329.84
6.4 351.46
6.6 373.77
6.8 396.76
7
420.45
7.2 444.81
7.4 469.87
7.6 495.61
7.8 522.04
Wall mounted
m (kg) Amin (m2)
< 1.224
–
1.224 1.43
1.4
1.87
1.6
2.44
1.8
3.09
2
3.81
2.2
4.61
2.4
5.49
2.6
6.44
2.8
7.47
3
8.58
3.2
9.76
3.4
11.02
3.6
12.36
3.8
13.77
4
15.25
4.2
16.82
4.4
18.46
Wall mounted
m (kg) Amin (m2)
4.6
20.17
4.8
21.97
5
23.83
5.2
25.78
5.4
27.80
5.6
29.90
5.8
32.07
6
34.32
6.2
36.65
6.4
39.05
6.6
41.53
6.8
44.08
7
46.72
7.2
49.42
7.4
52.21
7.6
55.07
7.8
58.00
Ceiling Mounted
m (kg) Amin (m2)
< 1.224
–
1.224 0.956
1.4
1.25
1.6
1.63
1.8
2.07
2
2.55
2.2
3.09
2.4
3.68
2.6
4.31
2.8
5.00
3
5.74
3.2
6.54
3.4
7.38
3.6
8.27
3.8
9.22
4
10.21
4.2
11.26
4.4
12.36
Ceiling Mounted
m (kg) Amin (m2)
4.6
13.50
4.8
14.70
5
15.96
5.2
17.26
5.4
18.61
5.6
20.01
5.8
21.47
6
22.98
6.2
24.53
6.4
26.14
6.6
27.80
6.8
29.51
7
31.27
7.2
33.09
7.4
34.95
7.6
36.86
7.8
38.83
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18 INSTALLATION OF OUTDOOR UNIT
· Synchro Operation
Install the branch pipe so that pipe length and difference between high and low will not exceed below Spec.[Unit : m]
L2 L3
L4
H1
L5
Remote ControllerL1
Branch AA
Pipe Length & Height
Spec(MAX.)
Total(L1+L2+L3+L4+L5)
80
Main Pipe(L1)
45
H2
Branch Pipe (L2+L3+L4+L5)
40
Each
15
Indoor-Outdoor (H1)
30
Indoor-Indoor (H2)
1
(L1+L2),(L1+L3),(L1+L4),(L1+L5)
70
A
10
– 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 whenconnecting. – Connect remaining those by cutting or direct insertion to the diameter of pipe.
· Refrigerant Additional Charging Method For additional charging method, see below table.
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 6.35Ø 9.52
C (g/m) 35 40
Model UUD1 / UUD3
b(m)
B(g/m)
7.5
40
NOTEb : 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 19
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Synchro Combination table
Applied Accessiries
IDU : INDOOR UNIT ODU : OUTDOOR UNIT BD : BRANACHDISTRIBUTOR UNIT REMO : WIRED REMOTECONTROLLER MODELUUD1 / UUD3BD unit Simple central controller**
Possible combination of indoor units
Synchro
Duo
Trio
Quartet
ODU
BD
IDU
IDU
REMO
ODU
ODU
BD
BD
IDU
IDU
IDU
IDU
IDU
IDU
IDU
REMO
REMO
Cassette
Duct
CT18F * 2 CM18F * 2
CT24F * 2 CM24F * 2
UT30F * 2 UM30F *2
PMUB11A
Cassette CT12F * 3 CT18F * 3
Duct CL12F * 3 CM18F * 3
PMUB111A
PQCSZ250S0
Cassette CT12F * 4
Duct CL12F *4
PMUB1111A
NOTE** 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.
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20 INSTALLATION OF OUTDOOR UNITOutdoor Unit PCB Setting Procedure For Simultaneous Operation System1 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 procedure1) 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 Addressingwork 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 button to turn on the indoor.6) If you fail to perform the Addressing work, repeat step 2)~5).
DIP SW01D1 23456
A
LED01E LED02E
B SW01M
Main PCB
DIP SW01D1 23456 1 23456 1 23456 1 23456
Indoor Unit No. 1(Single) : Default2(Duo) 3(Trio) 4(Quartet)
CONNECTING PIPES
Preparation of Piping– Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.– Use the de-oxidised copper as piping materials to install.Cut the pipes and the cable. – Use the accessory piping kit or the pipespurchased locally. – Measure the distance between the indoor andthe outdoor unit. – Cut the pipes a little longer than measureddistance. – Cut the cable 1.5 m longer than the pipelength.Burrs removal – Completely remove all burrs from the cutcross section of pipe/tube. – Put the end of the copper tube/pipe todownward direction as you remove burrs in order to avoid to let burrs drop in the tubing.Putting nut on – Remove flare nuts attached to indoor andoutdoor units, than put them on pipe/tube having completed burr removal. (Not possible to put them on after flaring work)Flaring work – Carry out flaring work using dedicated flaringtool for R32 as shown below.
Pipe diameter inch (mm)
A inch (mm) Wing nut type Clutch type
Ø 1/4 (Ø 6.35) 0.04~0.05 (1.1~1.3)
Ø 3/8 (Ø 9.52) 0.06~0.07 (1.5~1.7) Ø 1/2 (Ø 12.7) 0.06~0.07 (1.6~1.8) Ø 5/8 (Ø 15.88) 0.06~0.07 (1.6~1.8)
0~0.02 (0~0.5)
Ø 3/4 (Ø19.05) 0.07~0.08 (1.9~2.1)
Firmly hold copper tube in a bar(or clamp) as indicated dimension in the table above.Check – Compare the flared work with figure below. – If flare is noted to be defective, cut off theflared section and do flaring work again.
CONNECTING PIPES 21
Copper tube
90° Slanted Uneven Rough
Point down
Pipe Reamer
Flare nut Copper tube
<Wing nut type> Bar“A”
Copper pipe
<Clutch type>
Smooth all round Inside is shining without scratches.= Improper flaring =
Even length all round
Inclined Surface Cracked Uneven
damaged
thickness
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22 CONNECTING PIPES
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Connection of piping – Outdoor– Align the center of the piping and sufficiently tighten the flare nut by hand.– Finally, tighten the flare nut with torque wrench until the wrench clicks. When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench.
Outside diameter
mm
inch
Ø 6.35
1/4
Ø 9.52
3/8
Ø 12.7
1/2
Ø 15.88
5/8
Torque kg·m1.8~2.5 3.4~4.2 5.5~6.6 6.6~8.2
* When tighten the pipe, hold the hexagonal body.
Preventing foreign objects from entering (Figure 2)– Plug the pipe through-holes with putty or insulation material(procured locally)to stop up all gaps, as shown in the figure 2.
<Figure 2>
Liquid side piping Gas side piping
Connecting wire Drain hoseConnection pipeResin, Clay, Putty or insulating material (produced locally)
Outdoor unit
Gas side piping (Bigger Dia.)Liquid side piping (Smaller Dia.)
Torque wrench
Tubing Cover
ContinuousTorque wrench (250mmmm))
! CAUTIONInsects or small animals entering the outdoor unit may cause a short circuit in the electrical box.! CAUTION· A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between the refrigerating system parts.· When flared joints are reused indoors, the flare part shall be re-fabricated. (for R32)· When mechanical connectors are reused indoors, sealing parts shall be renewed. (for R32)· Copper in contact with refrigerants shall be oxygen-free or deoxidized, for example Cu-DHP as specified in EN 12735-1 and EN 12735-2.
CONNECTING PIPES 23
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Forming the pipingForm the piping by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tape.– If you want to connect an additional drain hose, the end of the drain outlet should be routed above the ground. Secure the drain hose appropriately.
In cases where the Outdoor unit is installed above the Indoor unit perform the following.1 Tape the piping and connecting cable from down to up.2 Secure the taped piping along the exterior wall. Form a trap to prevent water entering the room.3 Fix the piping onto the wall by saddle or equivalent.
In cases where the outdoor unit is installed below the indoor unit perform the following.1 Tape the piping, drain hose and connecting cable from down to up.2 Secure the tapped piping along the exterior wall using saddle or equivalent.
Seal a small opening around the pipings with gum type sealeanr.t.
Taping Drain hose
Plastic bandOUUTNDIOTOR
Pipings Connecting cablePower supply cord
· Trap is required to prevent water from entering into electrical parts.
Seal a small opening around the pipings with gum type sealeanr.t. TrapOUUTNDIOTORTrap! CAUTION· Refrigerant tubing shall be protected or enclosed to avoid damage.· Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage.
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24 WIRING CONNECTIONWIRING CONNECTIONElectrical WiringPerform the electrical wiring work according to the electrical wiring connection. – All wiring must comply with localrequirements. – Select a power source that is capable ofsupplying 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
Main power sourceIndoor
ELCB Switch boxOutdoor
Model Name UUA1 UUB1 UUC1 UUD1 UUD3
Phase(Ø) 1 1 1 1 3
ELCB (A) 15 20 25 40 20
Connecting Cables between Indoor Unit and Outdoor Unit– 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
1(L) 2(N) POWER SUPPLY
1(L) 2(N) 3 TO INDOOR UNIT
1(L) 2(N) POWER SUPPLY
1(L) 2(N) 3 TO INDOOR UNIT
UUA1 / UUB1 / UUC11(L) 2(N) 3 TO INDOOR UNIT
UUD1RS T N POWER SUPPLY
UUD3
WIRING CONNECTION 25
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Simultaneous Operation Unit 2,3,4Main Unit1
S Terminals on the indoor unit 4 1(L) 2(N) 3 S Terminals on the indoor unit 3 1(L) 2(N) 3 S Terminals on the indoor unit 2 1(L) 2(N) 3 M Terminals on the indoor unit 1 1(L) 2(N) 3
Terminals on the Outdoor unit
(380V-415V3N) (220V-240V~)
RST N
LN
1(L) 2(N) 3
DUCT, CVT
POWER INPUT
POWER INPUT
1(L) 2(N) 3 4 5 1(L) 2(N) 3 4 5 1(L) 2(N) 3 4 5 1(L) 2(N) 3 4 5
CN-REMO CN-REMO CN-REMO CN-REMO
1(L) 2(N) 3 CST
Remote Controller
· When using simultaneous Operation System, use only one wired remote controller in the indoor units
! CAUTIONThe power cord connected to the outdoor unit should comply to IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cord set complying with the national regulation.)
1 Phase(Ø)GN/YL 20 mm3 Phase(Ø)
NORMAL CROSS-SECTIONAL AREA
Model Name UUA1 / UUB1 / UUC1UUD1 UUD3
Phase(Ø) 1 1 3
Area(mm2) 2.5 6 2.5
GN/YL 20 mm
The connecting cable connected to the outdoor unit should comply to IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cord set complying with the national regulation.)
GN/YL
NORMAL CROSS-SECTIONAL AREA 0.75 mm2
20 mm
When the connection line between the indoor unit and outdoor unit is over 40 m, connect the telecommunication line and power line separately.If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent.Pipes and wires should be purchased separately for installation of the product.
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26 WIRING CONNECTION Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block.Round pressure terminal Power wireWhen 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.! WARNINGMake sure that the screws of the terminal are free from looseness.
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WIRING CONNECTION 27
Connecting the cable to Outdoor Unit
Remove the side panel for wiring connection. Use the cord clamp to fix the cord.
Earthing work – Case 1 : Terminal block of Outdoor Unit have mark.Connect the cable of diameter 1.6 mm2 or more to the earthing terminal provided in the control box and do earthing.
– Case 2 : Terminal block of Outdoor Unit don’t have mark. Connect the cable of diameter 1.6 mm2 or more, to the panel of control box, marked as and fasten with earth screw
Power cord
terminal
Connecting
cable terminal
Cord clamp Cord clamp* Make sure the rubber bushes are Properly used in knock-out holes after connecting main Power cable! CAUTION· The circuit diagram is not subject to change without notice. · Be sure to connect wires according to the wiring diagram. · Connect the wires firmly, so that They won’t be pulled out easily. · Connect the wires according to color codes by referring the wiring diagram. · The Power cord connected to the unit should be selected according to the specificationson 24 page.
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28 LEAKAGE TEST AND EVACUATIONLEAKAGE TEST AND EVACUATIONAir and moisture remaining in the refrigerant system have undesirable effects as indicated below. – Pressure in the system rises. – Operating current rises. – Cooling (or heating) efficiency drops. – Moisture in the refrigerant circuit may freeze and block capillary tubing. – Water may lead to corrosion of parts in the refrigeration system. Therefore, the indoor/outdoor unit and connecting tube must be checked for leak tight, and vacuumed to remove incondensible gas and moisture in the system.Preparation– Check that each tube (both liquid and gas side tubes) between the indoor and outdoor units have been properly connected and all wiring for the test run have been completed. Remove the service valve caps from both the gas and the liquid side on the outdoor unit. Check that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage.Leakage test– Connect the manifold valve (with pressure gauges) and dry nitrogen gas cylinder to this service port with charge hoses.! CAUTIONBe sure to use a manifold valve for leakage test. If it is not available, use a stop valve for this purpose. The “Hi” knob of the manifold valve must always be kept close.– Pressurize the system to no more than 3.8 MPa with dry nitrogen gas and close the cylinder valve when the gauge reading reached 3.8 MPa Next, test for leaks using bubble test solution.! CAUTIONTo avoid nitrogen entering the refrigerant system in a liquid state, the top of the cylinder must be higher than its bottom when you pressurize the system. Usually, the cylinder is used in a vertical standing position.
LEAKAGE TEST AND EVACUATION 29
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1 Do a leakage test of all joints of the tubing (both Indoor unit and outdoor unit) and both gas and liquid side service valves. Bubbles indicate a leak. Be sure to wipe off the soap with a clean cloth.2 After the system is found to be free of leaks, relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder. When the system pressure is reduced to normal, disconnect the hose from the cylinder.Evacuation– Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the “Lo and Hi” knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump. The following table shows the time required for evacuation.– When the desired vacuum is reached, close the “Lo and Hi” knob of the manifold valve and stop the vacuum pump.Finishing the job – With a service valve wrench, turn the valvestem of liquid side valve counter-clockwise to fully open the valve. – Turn the valve stem of gas side valve counter-clockwise to fully open the valve. – Loosen the charge hose connected to the gas side service port slightly to release the pressure, then remove the hose. – Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench. This process is very important to prevent leakage from the system. – Replace the valve caps at both gas and liquid side service valves and fasten them tight. This completes air purging with a vacuum pump. The air conditioner is now ready to test run.
Outdoor unit
Indoor unit
Manifold valve
Pressure
Lo Hi
gauge
Charge hose
Nitrogen gas cylinder (in vertical standing position)
Required time for evacuation when 11.36 l/h vacuum pump is used
If tubing length is less If tubing length is than 10 m (33 ft) longer than 10 m (33 ft)
30 min. or more
60 min. or more
0.07 kPa or less
Indoor unit Outdoor unit
Manifold valve
Pressure
Lo Hi
gauge
Open
Open
Vacuum pump
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30 TEST RUNNINGTEST RUNNING1 Precautions In Test Running – The initial power supply must provide at least 90 % of the rated voltage. Otherwise, the air conditioner should not be operated.! CAUTION· For test run, carry out the cooling operation firstly even during heating season. If heating operation is carried out firstly, it leads to the trouble of compressor. Then attention must be paid.· Carry out the test run more than 5 minutes without fail. (Test run will be cancelled 18 minutes later automatically)– The test run is started by pressing the room temperature checking button and down timer button for 3 seconds at the same time.– To cancel the test run, press any button.
CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE– After completing work, be sure to measure and record trial run properties, and store measured data, etc.– Measuring items are room temperature, outside temperature, suction temperature, blow out temperature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure, piping temperature, compressive pressure.– As to the structure and appearance, check following items.
Is the circulation of air adequate? Is the draining smooth? Is the heat insulation complete(refrigerant and drain piping)? Is there any leakage of refrigerant?
Is the remote controller switch operated? Is there any faulty wiring? Are not terminal screws loosened?M4……118 N.cm{12 kgf.cm} M5……196 N.cm{20 kgf.cm} M6……245 N.cm{25 kgf.cm} M8……588 N.cm{60 kgf.cm}
2 Connection of power supply– Connect the power supply cord to the independent power supply. Circuit breaker is required.– Operate the unit for fifteen minutes or more.
3 Evaluation of the performance– Measure the temperature of the intake and discharge air.– Ensure the difference between the intake temperature and the discharge one is more than 8 °C (Cooling) or reversely (Heating).
Thermometer
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TEST RUNNING 31! CAUTIONAfter the confirmation of the above conditions, prepare the wiring as follows: 1 Never fail to have an individual power specialized for the air conditioner. As for themethod of wiring, be guided by the circuit diagram pasted on the inside of control box cover. 2 Provide a circuit breaker switch between power source and the unit. 3 The screw 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 tightly fastened. (If they are loose, it could give rise to burn-out of the wires.) 4 Specification of power source 5 Confirm that electrical capacity is sufficient. 6 Be sure that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate. 7 Confirm that the cable thickness is as specified in the power sources specification. (Particularly note the relation between cable length and thickness.) 8 Never fail to equip a leakage breaker where it is wet or moist. 9 The following troubles would be caused by voltage drop-down. – Vibration of a magnetic switch, damage on the contact point there of fuse breaking,disturbance to the normal function of a overload protection device. – Proper starting power is not given to the compressor. 10 Use only 1 remote-controller contained in indoor unit, when using simultaneous operation system as shown below. After setting the ESP value in the Ceiling Concealed Duct Type Indoor Unit, the main power turns off and then remove the remote controller. 11 It is possible to connect (install) same type of indoor units only and also with in a single room. 12 Connecting cable length is up to 90 m.Connecting cableHAND OVER Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.).
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32 INSTALLATION PI485INSTALLATION PI485Fix the PI485 PCB as shown in below images. For detailed installation method refer to PI485 Installation Manual. UUA1UUB1UUC1UUD1 / UUD3
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FUNCTION 33
FUNCTION
DIP S/W SettingIf you set the DIP Switch when power is on, the change in setting is not applicable. The changing setting is enabled only when Power is reset.
DIP Switch
1
2
Function
Normal Operation (No Function)
Pump Down
Saving Power Consumption (Step 1)
Saving Power Consumption (Step 2)
Mode Lock (Cooling)
Mode Lock (Heating)
Night Quiet Mode (Step 1)
Night Quiet Mode (Step 2)
Mode Lock (Cooling) + Night Quiet Mode (Step 1)
Mode Lock (Cooling) + Night Quiet Mode (Step 2)
Mode Lock (Cooling) + Saving Power Consumption (Step 1)
Mode Lock (Cooling) + Saving Power Consumption (Step 2)
Mode Lock (Heating) + Saving Power Consumption (Step 1)
1 : UUB1 / UUC1 2 : UUD1 / UUD3
Mode Lock (Heating) + Saving Power Consumption (Step 2)
34 FUNCTION
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DIP Switch 1 2 3 4 5 6123456 123456 123456
Synchro_Duo Synchro_Trio Synchro_Quartet
Function
! WARNINGWhen you set the DIP switch, you should turn off the circuit breaker or shut the power source of the product down.
! CAUTION· Unless the applicable DIP switch is set properly, the product may not work. · If you want to set a specific function, request that the installer sets the DIP switch appropriatelyduring installation.
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Pump DownSetting Procedure 1 Set the DIP Switch as follow after shutting the power source down.
FUNCTION 35
5UUB1 / UUC1
1 23 4 56UUD1 / UUD3
2 Reset the power.3 Red LED and Green LED of PCB lights during work. (The indoor unit is operated by force.)4 If operation is done, Red LED will be turned off. If operation is not done normally, Red LED will blink.5 Close the Liquid valve only after green LED turned off (7 minutes from the start of the machine). Then close the gas valve after Green LED on.
! WARNING· When the green LED of PCB is on, compressor is going to be off because of low pressure. · You should return the DIP Switch to operate normally after finishing the operation. · Improper Pump down will lead to product turn off along with LED (green &red) off with in 20minutes from the initial start.
Pump Down DIP S/W Setting
Power on (Red LED On, Green LED Off)
Comp on (Red LED On, Green LED On)
Pump Down Start (Red LED On, Green LED Off)
Liquid Valve Closed
Pump Down Complete (Red LED Off, Green LED On)
Gas Valve Closed
Power off (Red LED Off, Green LED On)
· The actual product can be different from above contents depending upon model type.
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36 FUNCTION
Saving Power ConsumptionSaving Power Consumption operation is the function which enables efficient operation by lowering the maximum power consumption value.
Power consumptionand current
Normal
TimeSetting Procedure 1 Set the DIP Switch as follow after shutting the power source down.
UUB1 / UUC1
UUB1 / UUC1
UUD1 / UUD3 Step 12 Reset the power. Saving Power Consumption with Mode Lock.UUB1 / UUC1
UUD1 / UUD3 Step 2UUB1 / UUC1
UUD1 / UUD3Saving Power Consumption (step 1) + Mode Lock (Cooling)
UUD1 / UUD3Saving Power Consumption (step 1) + Mode Lock (Heating)
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UUB1 / UUC1
FUNCTION 37 UUB1 / UUC1
UUD1 / UUD3Saving Power Consumption (step 2) + Mode Lock (Cooling)
UUD1 / UUD3Saving Power Consumption (step 2) + Mode Lock (Heating)
Night Quiet ModeNight Quiet Mode operation lowers the noise level of the outdoor unit by changing the Compressor’s frequency and fan speed. This function is operated all night long.Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down.h Noise level :Step 1 > Step 2
UUB1 / UUC1
UUB1 / UUC1
UUD1 / UUD3 Step 12 Reset the power.
UUD1 / UUD3 Step 2
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38 FUNCTION Night Quiet Mode with Mode Lock.UUB1 / UUC1
UUB1 / UUC1
UUD1 / UUD3Mode Lock (Cooling) + Night Quiet Mode (step 1)
UUD1 / UUD3Mode Lock (Cooling) + Night Quiet Mode (step 2)
! CAUTION· If compressor’s frequency and fan speed are down, the cooling capacity may decrease accordingly.· This function is only available for Cooling Mode. · If you want to stop the Night Quiet Mode, Change the DIP Switch. · If operating indoor unit is set by the fan speed “Power”, Night Quiet Mode will be stoppeduntil fan speed “Power” is changed.
Mode LockSetting Procedure 1 Set the DIP Switch as follow after shutting the power source down.
UUB1 / UUC1
UUB1 / UUC1
UUD1 / UUD3 Only Cooling Mode2 Reset the power.
UUD1 / UUD3 Only Heating Mode
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Mode Lock with Night Quiet Mode UUB1 / UUC1
FUNCTION 39 UUB1 / UUC1
UUD1 / UUD3 Mode Lock (Cooling) + Night Quiet Mode (step 1)Saving Power Consumption with Mode Lock.UUB1 / UUC1
UUD1 / UUD3 Mode Lock (Cooling) + Night Quiet Mode (step 2)UUB1 / UUC1
UUD1 / UUD3Mode Lock (Cooling) + Saving Power Consumption (step 1)
UUD1 / UUD3Mode Lock (Heating) + Saving Power Consumption (step 1)
UUB1 / UUC1
UUB1 / UUC1
UUD1 / UUD3Mode Lock (Cooling) + Saving Power Consumption (step 2)
UUD1 / UUD3Mode Lock (Heating) + Saving Power Consumption (step 2)
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40 INSTALLATION GUIDE AT THE SEASIDE
INSTALLATION GUIDE AT THE SEASIDE
In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind
! CAUTION· Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced.· Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance.· If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind. Otherwise it needs additional anticorrosion treatment on the heat exchanger.Selecting the location (Outdoor Unit)In case, to install the outdoor unit on the seaside, set If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the opposite side of the sea wind direction. a windbreak not to be exposed to the sea wind.
WindbreakSea wind– It should be strong enough like concrete to prevent the sea wind from the sea.– The height and width should be more than 150 % of the outdoor unit.– More than 70 cm of space should be kept between outdoor unit and the windbreak for easy air flow.Place with fluent water draining – Install at a place with fluent water draining toprevent damage from localized heavy rain and avoid frequent flooded area.· Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water.
Sea wind
Sea wind
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SEASONAL WIND AND CAUTIONS IN WINTER 41SEASONAL WIND AND CAUTIONS IN WINTER– Sufficient measures are required in a snow area or severe cold area in winter so that product can operate well.– Get ready for seasonal wind or snow in winter even in other areas.– Install a suction and discharge duct not to let in snow or rain.– Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.– Install the outdoor unit at the higher installation console by 50 cm than the average snowfall (annual average snowfall) if it is installed at the area with much snowfall.– Where snow accumulated on the upper part of the Outdoor Unit by more than 10 cm, always remove snow for operation.
42
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report this ad· The information for Eco design is available on the following free access website. https://www.lg.com/global/support/cedoc/cedoc
References
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