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4

INSTALLATION PROCESS

ENGLISH

The foundation must be level even

Outside unit foundation work

Avoid short circuits and ensure 
sufficient space is allowed for service

Installation of outside unit

Refer to automatic addressing flowchart

Automatic addressing of indoor unit 

In the final check for 24hours at 3.8 MPa(38.7 kgf/cm

2

) there 

must be no drop in pressure.

Airtight test

Multiple core cable must not be used.
(suitable cable should be selected)

Electrical work

(connection circuits and drive circuits)

Make sure no gaps are left where 
the insulating materials are joined

Heat insulation work

Make sure airflow is sufficient

Duct work

Adjust to downward gradient

Drain pipe work

Special attention to dryness, 
cleanness and tightness

Refrigerant piping work

Check model name to 
make sure the fitting 
is made correctly

Installation of indoor unit

Take account of gradient 
of drain piping

Sleeve and insert work

Make connection clearly between outside, indoor, 
remote controller and option.

Preparation of contract drawings

Indicate clearly who will be responsible for switch setting.

Determination of division work

The vacuum pump used must have a capacity of reaching at least 
5 torr, more than 1 hour

Vacuum drying

Recharge correctly as calculated in this manual. and record the 
amount of added refrigerant

Additional charge of refrigerant

Make sure there are no gaps left between the facing materials 
used on the ceiling 

Fit facing panels

Run each indoor unit in turn to make sure the pipe work 
has been fitted correctly

Test run adjustment

Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order

Transfer to customer with explanation

Preheat the crank case with the electrical  heater for more than 6 hours.

CAUTION

• The above list indicates the order in which the individual work

operations are normally carried out but this order may be varied
where local conditions warrants such change.

• The thickness of the piping should comply with the relevant

local and national regulations for the designed pressure 3.8MPa.

• Since R410A is a mixed refrigerant, the required additional

refrigerant must be charged in its liquid state.(If the refrigerant
is charged in its gaseous state, its composition changes and the
system will not work properly.)

!

CAUTION

Notes: * We can guarantee the operation only within 130% Combina-

tion. If you want to connect more than 130% combination,
please contact us and discuss the requirement like below.

• If the operation of indoor unit is more than 130%, low airflow

operation is recommended in all the indoor units.

• If the operation of indoor unit is more than 130%, additional re-

frigerant is needed according to the Aheadquarter guidance.

• Over 130%, capacity is same as capacity of 130%, Same re-

mark is valid for power input.

• Ratio of the running Indoor Units to the Outside: Within 10 ~ 100%
• A combination operation over 100% cause to reduce each indoor unit capacity.

Combination Ratio(50~200%)

Outside Unit Number

Connection Ratio

Single outside unit s

200%

Double outside unit s

160%

More than Triple outside unit s

130%

!

OUTSIDE UNITS INFORMATION

Power Supply : 3

Φ

, 380-415V, 50Hz 

Model Name : ARWN***LAS4

Unit

1 Unit

System Capacity (HP)

8

10

12

Model

Combination Unit

ARWN080LAS4

ARWN100LAS4

ARWN120LAS4

Independent Unit

ARWN080LAS4

ARWN100LAS4  

ARWN120LAS4

Refrigerant Precharged Amount

kg

5.5

3.4

3.5

Maximum Connectable Number of Indoor Units

13

16

20

Net Weight  

kg  

127 x 1

127 x 1

127 x 1

lbs  

280 x 1

280 x 1

280 x 1

Dimensions(WxHxD)  

mm  

755 × 997 × 500

755 × 997 × 500

755 × 997 × 500

inch   (29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1

Refrigerant
Connecting Pipes  

Liquid   mm(inch)  

9.52(3/8)  

9.52(3/8)  

12.7(1/2)

Gas  

mm(inch)  

22.2(7/8)  

22.2(7/8)  

25.4(1)

Water Connect-
ing Pipes  

Inlet  

mm  

PT 40  

PT 40  

PT 40  

Outlet  

mm  

PT 40  

PT 40  

PT 40  

Drain Outlet

mm  

20

20

20

Temp. range of
Circulation water

Cooling

10°C ~ 45°C(50°F ~ 113°F)

10°C ~ 45°C(50°F ~ 113°F)

10°C ~ 45°C(50°F ~ 113°F)

Heating

-5°C ~ 45°C(23°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F)

Unit

2 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight  

kg  

lbs  

Dimensions(WxHxD)  

mm  
inch  

Refrigerant
Connecting Pipes  

Liquid   mm(inch)  
Gas  

mm(inch)  

Water Connect-
ing Pipes  

Inlet  

mm  

Outlet  

mm  

Drain Outlet

mm  

Temp. range of
Circulation water

Cooling
Heating

Unit

1 Unit

System Capacity (HP)

Model

Combination Unit
Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight  

kg  

lbs  

Dimensions(WxHxD)  

mm  
inch  

Refrigerant
Connecting Pipes  

Liquid   mm(inch)  
Gas  

mm(inch)  

Water Connect-
ing Pipes  

Inlet  

mm  

Outlet  

mm  

Drain Outlet

mm  

Temp. range of
Circulation water

Cooling
Heating

18

20

ARWN180LAS4

ARWN200LAS4

ARWN180LAS4

ARWN200LAS4

3

3

29

32

140 x 1

140 x 1

309 x 1

309 x 1

755 × 997 × 500

755 × 997 × 500

(29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1

12.7(1/2)  

12.7(1/2)  

28.58(1-1/8)  

28.58(1-1/8)  

PT 40  

PT 40  

PT 40  

PT 40  

20

20

10°C ~ 45°C(50°F ~ 113°F)

10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F)

Unit

1 Unit

System Capacity (HP)

Model

Combination Unit
Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight  

kg  

lbs  

Dimensions(WxHxD)  

mm  
inch  

Refrigerant
Connecting Pipes  

Liquid   mm(inch)  
Gas  

mm(inch)  

Water Connect-
ing Pipes  

Inlet  

mm  

Outlet  

mm  

Drain Outlet

mm  

Temp. range of
Circulation water

Cooling
Heating

14

16

ARWN140LAS4

ARWN160LAS4

ARWN140LAS4

ARWN160LAS4

5.8

3

23

26

127 x 1

140 x 1

280 x 1

309 x 1

755 × 997 × 500

755 × 997 × 500

(29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1

12.7(1/2)

12.7(1/2)  

25.4(1)

28.58(1-1/8)  

PT 40  

PT 40  

PT 40  

PT 40  

20

20

10°C ~ 45°C(50°F ~ 113°F)

10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F)

22

24

26

ARWN220LAS4  

ARWN240LAS4  

ARWN260LAS4  

ARWN120LAS4

ARWN120LAS4

ARWN140LAS4

ARWN100LAS4

ARWN120LAS4  

ARWN120LAS4  

3.5 + 3.4

3.5 + 3.5

5.8 + 3.5

35

39

42

127 x 2

127 x 2

127 x 2

280 x 2

280 x 2

280 x 2

(755 × 997 × 500) x 2

(755 × 997 × 500) x 2

(755 × 997 × 500) x 2

(29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2

19.05(3/4)  

19.05(3/4)  

19.05(3/4)  

34.9(1-3/8)  

34.9(1-3/8)  

34.9(1-3/8)  

PT 40 + PT 40

PT 40 + PT 40

PT 40 + PT 40

PT 40 + PT 40

PT 40 + PT 40

PT 40 + PT 40

20

20

20

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Содержание Multi V ARWN Series

Страница 1: ...etely 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 your set and retain it for future reference MODELS ARWN Series ENGLISH ...

Страница 2: ...ified on the unit If a different refrigerant or air is mixed with the original refrigerant the refrigerant cycle may malfunction and the unit may be damaged Do not reconstruct to change the settings of the protection devices If the pressure switch thermal switch or other protection device is shorted and operated forcibly or parts other than those specified by LGE are used fire or explosion may res...

Страница 3: ...transportation Only one person should not carry the product if it weighs more than 20 kg Some products use PP bands for packaging Do not use any PP bands for a means of transportation It is dangerous Do not touch the heat exchanger fins Doing so may cut your fingers When transporting the outside unit suspending it at the specified positions on the unit base Also support the outside unit at four po...

Страница 4: ... unit s 130 OUTSIDE UNITS INFORMATION Power Supply 3Φ 380 415V 50Hz Model Name ARWN LAS4 Unit 1 Unit System Capacity HP 8 10 12 Model Combination Unit ARWN080LAS4 ARWN100LAS4 ARWN120LAS4 Independent Unit ARWN080LAS4 ARWN100LAS4 ARWN120LAS4 RefrigerantPrechargedAmount kg 5 5 3 4 3 5 MaximumConnectableNumberofIndoorUnits 13 16 20 Net Weight kg 127 x 1 127 x 1 127 x 1 lbs 280 x 1 280 x 1 280 x 1 Dime...

Страница 5: ...AS4 ARWN120LAS4 3 0 3 5 3 4 3 0 3 5 3 5 3 0 5 8 3 5 64 64 64 140 x 1 127 x 2 140 x 1 127 x 2 140 x 1 127 x 2 309 x 1 280 x 2 309 x 1 280 x 2 309 x 1 280 x 2 755 997 500 x 3 755 997 500 x 3 755 997 500 x 3 29 23 32 x 39 1 4 x 19 11 16 x 3 29 23 32 x 39 1 4 x 19 11 16 x 3 29 23 32 x 39 1 4 x 19 11 16 x 3 19 05 3 4 19 05 3 4 19 05 3 4 41 3 1 5 8 41 3 1 5 8 41 3 1 5 8 PT 40 PT 40 PT 40 PT 40 PT 40 PT ...

Страница 6: ...y generate electric noise Keep the body from computer stereo etc at enough distance Specially leave space from indoor remote controller to shoes electric devices at the above 3m in weak electric wave area Insert the power cable and other wire into separate conduit Unit 4 Unit System Capacity HP Model Combination Unit Independent Unit RefrigerantPrechargedAmount kg MaximumConnectableNumberofIndoorU...

Страница 7: ...th the pump before dropping the tempera ture Keep the normal temperature by boiler When the cooling tower is not operated for a long time drain the water in the cooling tower Use an anti freeze For using an anti freeze change the DIP switch on main PCB in outside unit Refer to the additive amount about freezing temperature as in the table given below In addition to anti freeze it may cause the cha...

Страница 8: ...water temperature is 40 C or above or when un coated iron is exposed to the water it can result in corrosion Therefore adding anti corrosion agent or removing the air can be very effective In case of using the closed type cooling tower the cooling water and supplementing water must satisfy the water quality criteria of closed type system in the table Supplementing water and supplied water must be ...

Страница 9: ...the cable 1 5m longer than the pipe length Pipe Reamer Point down Copper tube 90 Slanted Uneven Rough Preparation of Piping 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 re move burrs in order to avoid to let burrs drop in the tubing Flaring work Carry out flaring work using flaring tool as shown b...

Страница 10: ...rant pipe EPDM heat insulation material thickness Classification Air conditioned location Non air conditioned location Note1 General location Note2 Special location Note3 General location Note4 Negative condition Liquid pipe Ø6 35 Above t9 Above t9 Above t9 Above t9 Ø9 52 Above Ø12 7 Above t13 Above t13 Above t13 Above t13 Gas pipe Ø9 52 Above t13 Above t19 Above t19 Above t25 Ø12 7 Ø15 88 Ø19 05 ...

Страница 11: ...n dioxide and a Chevron gas Please use the following nitrogen pressure 0 02MPa Oxygen Promotes oxidative degradation of refrigerant oil Because it is flammable it is strictly prohibited to use Carbon dioxide Degrade the drying characteristics of gas Chevron Gas Toxic gas occurs when exposed to direct flame 2 Always use a pressure reducing valve 3 Please do not use commercially available antioxidan...

Страница 12: ...rant piping differs use a pipe cutter to cut the connecting section and then use an adapter for connecting different diameters to connect the piping 7 Always observe the restrictions on the refrigerant piping such as rated length difference in height and piping diameter Failure to do so can result in equipment failure or a decline in heat ing cooling performance 9 The Multi V will stop due to an a...

Страница 13: ...ROTECTION UNIT Upper graph is a theoretical value for selection and it may be different according to specification of strainer To protect the water cooling type product you must install a strainer with 50 mesh or more on the heat water supply pipe If not installed it can result in damage of heat exchanger by the follow ing situation 1 Heat water supply within the plate type heat exchanger is com p...

Страница 14: ... heat exchanger When the product operates while the flow switch touches the contact point at the flow rate range out of the permitted range it can cause product performance deterioration or serious prod uct problem Must use the normal closed type flow switch Circuit of outside unit is normal closed type Y branch method Combination of Y branch header method Header method Ⓐ Outside Unit Ⓑ 1st branch...

Страница 15: ...ave 1 Slave 2 Slave 3 C C C C C C Pipe Connection Method between outside unit indoor unit h See Table 2 A Refrigerant pipe diameter from outside unit to first branch E Refrigerant pipe diameter for outside unit capacity Slave 1 Slave 2 Slave 3 F Refrigerant pipe diameter for outside unit capacity Slave 2 Slave 3 G Refrigerant pipe diameter for outside unit capacity Slave 3 L1 L2 L3 L4 H1 E G F Sla...

Страница 16: ...ipe connection between outside unit s General Case The maximum pipe length after the first branching between the outside unit is 10m or les Pipes between outside unit s are 2m or less 2m or less Pipes between outside unit s are 2m or longer Oil Trap Oil Trap Oil Trap 2m or less 2m or less 2m or less 0 2m or more 2m or longer 2m or longer 2m or longer Oil trap application method between outside unit...

Страница 17: ...oward indoor unit Oil Trap Example 3 The amount of Refrigerant The calculation of the additional charge should take into account the length of pipe and CF correction Factor value of indoor unit Total liquid pipe Ø25 4 mm Additional charge kg Total liquid pipe Ø22 2 mm Total liquid pipe Ø19 05 mm Total liquid pipe Ø15 88 mm Total liquid pipe Ø12 7 mm Total liquid pipe Ø9 52 mm Total liquid pipe Ø6 ...

Страница 18: ...stribution Method WARNING Regulation for refrigerant leakage the amount of refrigerant leakage should satisfy the following equation for human safety If the above equation can not be satisfied then follow the follow ing steps Selection of air conditioning system select one of the next Installation of effective opening part Reconfirmation of Outside Unit capacity and piping length Reduction of the ...

Страница 19: ...n taped as described above Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure Insulator Insulator of field pipe Tape Tape Cap pipe Insulator for cap pipe Y branch pipe Models Gas pipe Liquid pipe ARBLN 01621 I D19 05 O D15 88 I D12 7 I D15 88 I D12 7 I D15 88 I D15 88 I D12 7 292 281 74 70 I D12 7 O D9 52 I D6 35 I D9 52 I D 9 52 I D 6 35 I D9 52...

Страница 20: ...ture at the time of pressurization 3 8 MPa is 27 C 24 hour later 3 73 MPa 20 C In this case the pressure drop of 0 07 is because of tem perature drop And hence there is no leakage in pipe oc curred CAUTION To prevent the nitrogen from entering the refrigeration system in the liquid state the top of the cylinder must be at higher position than the bottom when you pressurize the system Usually the c...

Страница 21: ...r unit PCB Vacuum Mode DIP SWITCH 7 Segment SW01C confirm SW02C backward forward SW04C X cancel SW01D reset SW03C ȭ ȯ Ɨ Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat resistant poly ethylene so that no gap is observed in the joint between indoor unit and insulating material and insulating materials themselves When in ...

Страница 22: ...re shield cable for communication cable O mark in the figure below If communication cable of different systems are wired with the same multiplecore cable the resultant poor transmitting and re ceiving will cause erroneous operations mark in the figure below Only the communication cable specified should be connected to the terminal block for Outside Unit communication CAUTION Be sure to correct the...

Страница 23: ...in the signal wiring caused by electrostatic and electro magnetic coupling The tables below indicates our recommendation as to appropriate spacing of communication and power cables where these are to be run side by side Current capacity of power cable Spacing 100V or more 10A 300mm 50A 500mm 100A 1000mm Exceed 100A 1500mm Main PCB Noise Filter External PCB Take care of the phase sequence of 3 phas...

Страница 24: ... firmly it may cause heating or fire Make sure to use the appropriate type of overcurrent protection switch Note that generated overcurrent may include some amount of direct current Field Wiring Single outside unit R S T N Switch Fuse L N Communication cable 2 Wires Cable Power cable 4 Wires Cable Communication cable 3 Wires Cable Power cable 2 Wires Cable Power cable 2 Wires Cable Power cable 2 W...

Страница 25: ...round wires are required for preventing electrical shock accident during current leakage Communication disorder by noise effect and motor current leakage without connection to pipe Don t install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply Install the main switch that can interrupt all the power sources in an integrated manner because...

Страница 26: ... on 7 segment LED after completing setting Indoor address number is displayed on wired remote control or indoor unit display window It is not an error message will disappeared when on off button is pressed on remote control ex Display of 01 02 15 means connection of 15 indoor units and Automatic addressing is completed normally Automatic addressing start Waiting 3 minutes Power On Press RED Button...

Страница 27: ...s set Function setting Switch control Function Switch Phase Switch Bottom OFF op1 mode op2 mode Right Left Not operate Cooling Cooling Right Right Not operate Heating Heating Left Not operate Fan mode Off CAUTION Request the function settings to the installation specialist during the outside unit installation When the function is not used set it to OFF If use a function first install a Cool Heat s...

Страница 28: ...220V output It is the function to select 220V output when you want solenoid valve control How to set the mode Geothermal mode setting If you want to use the product with heat source water of the low tem perature such as ground heat it is the function that enables the use of ground heat mode How to set the mode Mode setting ON Set to operate in geothermal mode OFF Set to operate in general mode Tur...

Страница 29: ...power consumption 2 5 C 4 C op4 Decrease power consumption Decrease power consumption 4 5 C 6 C CAUTION Request the function settings to the installation specialist during the outside unit installation When the function is not used set it to OFF If the temperature of the outside unit installation place is 0 C or less we recommend the connection and usage of Sump Heater Use Sump Heater It is the fu...

Страница 30: ... outside units Execute the test of water supply system without operating the product Check whether outside unit inlet outlet flow rate complies to the product specification Standard Water volume is 96LPM based on 10HP and 196LPM based on 20HP Check the water supply temperature whether is OK After checking the normal condition of the water supply execute the test run of the product To prevent the fre...

Страница 31: ...checking can be required depending on the oper ating condition water quality condition When cleaning the heat exchanger make sure to take parts out or lock the value so that chemical detergent does not penetrate into the pressure gauge etc When cleaning the heat exchanger check the connecting part of the water pipes prior to cleaning so that the chemical detergent does not leak After sufficiently ...

Страница 32: ...er compressor operation failure error Master outside unit inverter DC link over voltage error Master outside unit inverter compressor overcurrent Master outside unit inverter compressordischarge temperature over rise Master outside unit high pressure over rise Air temperature sensor of indoor unit is open or short Inlet pipe temperature sensor of indoor unit is open or short Failing to receive wir...

Страница 33: ...under low Compression limit for 3 minutes Master Outside unit inverter compressor current detection CT sen sor disconnection or short circuit Master outside unit inverter compressor current detection CT sen sor disconnection or short circuit Master outside unit inverter compressor discharge temperature sensor disconnection or short circuit Master Outside Unit Low Pressure Sensor open or short Mast...

Страница 34: ...scribed in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation Limiting concentration 0 44kg m3 R410A Amount of additional replenished refrigerant Total amount of replenished refrigerant in refrigerant facility kg Note In case one refrigerant facility is divided into 2 or more refrigerant systems and each system is independent amount of replenished refrigerant of ea...

Страница 35: ...ning effective to ventilation Indoor unit Pay a special attention to the place such as a basement etc where refrigerant can stay since refrigerant is heavier than air WATER SOLENOID VALVE CON TROL COOLING TOWER APPLIED METHOD Central Control Use DDC Port Individual Control Use 220V Output Port Water In BMS Building Management System Water Out Solenoid Valve CN_18 220 V Out CN_22 to DDC PI 485 DDC ...

Страница 36: ...ls the requirement above If necessary the user can ask the public power supply com pany for the system impedance at the interface point The below Installation guide is limited applicable only for model Model ARWN200LAS4 ARWN180LAS4 ARWN160LAS4 Installation Guide for Harmonics EN 61000 3 2 EN 61000 3 12 Installation Guide for Flicker EN 61000 3 3 EN 61000 3 11 This equipment complies with IEC EN 61...

Страница 37: ......

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