LG Electronics LG-UUA1 Air Conditioner Instruction Manual

LG-UUA1 Air Conditioner

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

INSTALLATION MANUAL
AIR 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.com
Copyright © 2019 – 2020 LG Electronics Inc. All Rights Reserved.

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2 MODEL DESIGNATION
MODEL DESIGNATION
Product information
– Product Name : Air conditioner – Model Name :
U U D 1 U3 0
Serial 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 Emission
The 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 3
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:
· 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 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 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.

! WARNING
Serious injury or death can result if directions are ignores.

! CAUTION
Minor 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 observed
Installation · Do not use a defective or underrated circuit breaker. Use the
correctly 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 where
the 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.
! CAUTION
Installation · Two or more people must 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. · 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 as
preserving 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 13
TABLE OF CONTENTS
2 MODEL DESIGNATION
3 TIPS FOR SAVING ENERGY
4 IMPORTANT SAFETY INSTRUCTIONS
14 INSTALLATION
15 INSTALLATION OF OUTDOOR UNIT
21 CONNECTING PIPES
21 Preparation of Piping 22 Connection of piping – Outdoor 23 Forming the piping
24 WIRING CONNECTION
24 Electrical Wiring 24 Connecting Cables between Indoor Unit and Outdoor Unit 27 Connecting the cable to Outdoor Unit
28 LEAKAGE TEST AND EVACUATION
28 Preparation 28 Leakage test 29 Evacuation
30 TEST RUNNING
32 INSTALLATION PI485
33 FUNCTION
33 DIP S/W Setting 35 Pump Down 36 Saving Power Consumption 37 Night Quiet Mode 38 Mode Lock
40 INSTALLATION GUIDE AT THE SEASIDE
41 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-meter
Hexagonal wrench
Ammeter
Gas-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.
Sunroof
More than 300

! 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.

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)

Gas
Ø 9.52 (3/8) Ø 12.7(1/2) Ø 15.88 (5/8) Ø 15.88 (5/8)

Liquid
Ø 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 refrigerant
Standard Max (g/m)

5

15 20

5

30 20

5

30 40

5

30 40

2. Compact Inverter

ODU
UUA1 UUB1 UUC1

Capacity (kBtu/h)
18 24/30
36

Pipe Size mm(inch)

Gas
Ø 12.7 (1/2) Ø 15.88 (5/8) Ø 15.88 (5/8)

Liquid
Ø 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 9.52
X X X X O O

b Ø 9.52 Ø 12.7
X X O X X X

c Ø 12.7 Ø15.88
X 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 17
Minimum 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) 600
Floor standing
500

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 Controller
L1

Branch A
A

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 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.

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
Ø 9.52

C (g/m) 35 40

Model UUD1 / UUD3

b(m)

B(g/m)

7.5

40

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 19

ENGLISH

Synchro Combination table

Applied Accessiries

IDU : INDOOR UNIT ODU : OUTDOOR UNIT BD : BRANACH
DISTRIBUTOR UNIT REMO : WIRED REMOTE
CONTROLLER MODEL
UUD1 / UUD3
BD 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 UNIT
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 button to turn on the indoor.
2. If you fail to perform the Addressing work, repeat step 2)~5).

DIP SW01D
1 23456

A

LED01E LED02E

B SW01M

Main PCB

DIP SW01D
1 23456 1 23456 1 23456 1 23456

Indoor Unit No. 1(Single) : Default
2(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 pipes
purchased locally. – Measure the distance between the indoor and
the outdoor unit. – Cut the pipes a little longer than measured
distance. – Cut the cable 1.5 m longer than the pipe
length.
Burrs removal – Completely remove all burrs from the cut
cross section of pipe/tube. – Put the end of the copper tube/pipe to
downward direction as you remove burrs in order to avoid to let burrs drop in the tubing.
Putting nut on – Remove flare nuts attached to indoor and
outdoor units, than put them on pipe/tube having completed burr removal. (Not possible to put them on after flaring work)
Flaring work – Carry out flaring work using dedicated flaring
tool 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 the
flared section and do flaring work again.

CONNECTING PIPES 21

Copper tube

90° Slanted Uneven Rough

Point down

Pipe Reamer

Flare nut Copper tube