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6

Outside Unit

Safety Precautions

Safely dispose of the packing materials.

• Packing materials, such as nails and other metal or wooden

parts, may cause stabs or other injuries.

• Tear apart and throw away plastic packaging bags so that

children may not play with them. If children play with a plastic
bag which was not torn apart, they face the risk of suffocation.

Turn on the power at least 6 hours before
starting operation.

• Starting operation immediately after turning on the main

power switch can result in severe
damage to internal parts. Keep the power switch turned on
during the operational season.

Be very careful about product 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 points so that it cannot slip sideways.

Do not touch any of the refrigerant piping
during and after operation.

• It can cause a burn or frostbite.

Do not operate the air conditioner with the
panels or guards removed.

• Rotating, hot, or high-voltage parts can cause injuries.

Do not directly turn off the main power
switch after stopping operation.

• Wait at least 5 minutes before turning off the main power

switch. Otherwise it may result in water leakage or other
problems.

Auto-addressing should be done in condition of
connecting the power of all indoor and outdoour
units. Auto-addressing should also be done in
case of changing the indoor unit PCB.

Use a firm stool or ladder when cleaning or
maintaining the air conditioner.

• Be careful and avoid personal injury.

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Содержание ARWN Series

Страница 1: ...t 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 www lg com MODELS ARWN Series 3Ø 220V 60Hz P NO MFL67008801 ITALIANO ESPAÑOL FRANCAIS DEUTSCH PORTUGUESE ENGLISH ...

Страница 2: ...he Best Location 9 Installation space 10 Water control 12 Lifting method 14 Installation 15 Refrigerant piping installation 19 Protection device unit 24 Refrigerant piping system 26 Y branch pipe and header branch pipe type 43 Leakage test and vacuum 45 Electrical Wiring 47 Test Run 62 Cooling tower applied method 71 Caution For Refrigerant Leak 72 Water Solenoid Valve Control 74 2 Outside Unit ...

Страница 3: ... fire may result Ask the dealer or an authorized technician to install the air conditioner Improper installation by the user may result in water leak age electric shock or fire Always ground the product There is risk of fire or electric shock Always intstall a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock For re installation of the installed product...

Страница 4: ...ry When installing and moving the air condition er to another site do not charge it with a different refrigerant from the refrigerant specified 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...

Страница 5: ...unication station or similar place provide sufficient protection against noise The inverter equipment private power generator high fre quency medical equipment or radio communication equip ment may cause the air conditioner to operate erroneously or fail to operate On the other hand the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcastin...

Страница 6: ...eans 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 points so that it cannot slip sideways Do not touch any of the refrigerant piping during and after operation It can cause a burn or frostbite Do not operate the ai...

Страница 7: ...ct drawings Indicate clearly who is to be responsible for switch settings 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 ...

Страница 8: ... 3 Units 32 40 48 ARWN320BA2 ARWN400BA2 ARWN480BA2 ARWN160BA2 ARWN160BA2 ARWN160BA2 ARWN160BA2 ARWN160BA2 ARWN160BA2 ARWN80BA2 ARWN160BA2 8 8 8 8 8 8 8 8 7 3 8 8 8 8 8 8 0 0 0 64 64 64 230 230 230 230 154 230 230 230 772 x 1 120 x 547 x 2 772 x 1 120 x 547 x 3 772 x 1 120 x 547 x 3 30 4 x 44 1 x 21 5 x 2 30 4 x 44 1 x 21 5 x 3 30 4 x 44 1 x 21 5 x 3 19 05 3 4 19 05 3 4 19 05 3 4 41 3 1 5 8 41 3 1 ...

Страница 9: ...y be lengthened in case of installing the outside unit in winter at following location 1 Shade position with a narrow space 2 Location with much moisture in neighboring floor 3 Location with much humidity around 4 Location where water gathers since the floor is not even The refrigerant R410A has the property of higher operating pressure in comparison with R22 Therefore all materials have the chara...

Страница 10: ...ce area In case of the water pipe passing side product please make sufficient service place to avoid occurring between water pipe and product side Service area 20 100 350 772 Water pipe installation space H Beam Support unit mm 600 547 1120 100 100 20 Product Outside unit Top View Front View Service area Front Product Outside unit Product Outside unit Unit mm Top view 20 350 350 772 100 772 100 60...

Страница 11: ...on Space required for two layer installation as shown below considering passage for air and people Service area H Beam Support 1120 100 100 100 Front View unit mm 1120 100 Installation space Installation Manual 11 ENGLISH ...

Страница 12: ...ful not to let air in If so the water velocity will be unstable in the circulation pump efficiency will also decrease and may cause the piping vibration Therefore install the air purge where it may generate the air Choose the following anti freezing methods Otherwise it will be dangerous for the pipe to break in the winter Circulate the water with the pump before dropping the temperature Keep the ...

Страница 13: ...an be very effective 3 In case of using the closed type cooling tower the cooling water and supplementing water must satisfy the water qual ity criteria of closed type system in the table 4 Supplementing water and supplied water must be supplied with tap water industrial water and underground water excluding filtered water neutral water soft water etc 5 15 items in the table are general causes of ...

Страница 14: ... 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 Outside Unit be sure to support it at four points Carrying in and lifting...

Страница 15: ...ting in a personal injury Have installation work in order to protect against a strong wind and earthquake Any installation deficiency may cause unit to fall down resulting in a personal injury Especially take care for support strength of the floor surface water drain processing processing of water flown out from the outside unit during operation and paths of the pipe and wiring when mak ing a base...

Страница 16: ...n below Firmly hold copper tube in a bar or die as indicated dimension in the table above 4 Check n Compare the flared work with figure below n If flare is noted to be defective cut off the flared section and do flaring work again Main cause of gas leakage is defect in flaring work Carry out correct flaring work in the following procedure Pipe A Gas Liquid Gas Liquid 5 6 19 100 1 2 1 4 0 5 0 8 0 0...

Страница 17: ...nnected use nitrogen to perform a gas leak check Tightening torque Union CAUTION Always use a charge hose for service port connection After tightening the cap check that no refrigerant leaks are present When loosening a flare nut always use two wrenches in combination When connecting the piping always use a spanner and torque wrench in combination to tighten the flare nut When connecting a flare n...

Страница 18: ...is operated for a long time in high humid atmosphere dew point tempera ture more than 23 C water drops are liable to fall In this case add heat insulation material according to the following procedure Heat insulation material to be prepared EPDM Ethylene Propylene Diene Methylene over 120 C the heat resistance temperature Add the insulation over 10mm thickness at high humidity environment Indoor u...

Страница 19: ...e valve port Releasing pressure 0 02 MPa or less Flare nut Loose or tighten flare nut by using the wrench with both ends Coat the flare connection part with oil for the compressor Cap Remove caps and operate valve etc After opera tion always reattach caps tightening torque of valve cap 25Nm 250kg cm or more Don t remove the internal part of the port Service port Make the refrigerant pipe vacuum an...

Страница 20: ...gf cm2 4 The vacuum criteria is to maintain the vacuum level to less than 5 Torr 1 hour after reaching 5 Torr Execute the vacuum work again when it is below the criteria 5 Open the valve with the hexagon wrench Connecting branch pipe Combination specification Gas pipe Liquid pipe ARCNN20 unit mm Don t cut the pipe less than 70mm Blow nitrogen while brazing 473 363 38 I D22 2 I D31 8 I D34 9 75 83 ...

Страница 21: ... 70mm Blow nitrogen while brazing I D28 58 440 370 45 I D34 9 I D34 9 I D28 58 I D41 3 I D38 1 115 O D28 58 I D19 05 I D22 2 397 289 24 I D22 2 I D19 05 I D15 88 I D12 7 I D19 05 I D12 7 73 O D12 7 I D9 52 Don t cut the pipe less than 70mm Blow nitrogen while brazing 473 363 38 I D22 2 I D31 8 I D34 9 75 83 O D34 9 115 O D28 58 I D28 58 I D28 58 I D28 58 I D22 2 I D38 1 I D19 05 I D19 05 I D19 05 ...

Страница 22: ...sure gauge and temperature gauge at the inlet and outlet of the water pipe Flexible joints must be installed not to cause any leakage from the vibration of pipes Install a service port to clean the heat exchanger at the each end of the water inlet and outlet For the components of the water pipe system always use components above the designed water pressure 2 Water pipe connection The water pipe sh...

Страница 23: ... 3 4 12 1 200 2 5 250 20 2 115 11 5 25 4 1 1 1 2 1 120 4 400 45 4 5 155 15 5 31 8 1 1 4 14 5 1 450 6 5 650 87 5 8 75 265 26 5 38 1 1 1 2 16 5 1 700 9 5 950 155 16 350 35 5 50 8 2 21 5 2 200 13 5 1 400 255 26 600 61 Pipe thickness Shear stress Tensile stress Bending moment Torque Refrigerant piping installation Installation Manual 23 ENGLISH ...

Страница 24: ... of water does not flow after installing the flow switch an error sign of CH24 error will be displayed on the product and the product will stop operating When setting the flow switch it is recommended to use the product with default set value to satisfy the minimum flow rate of this product The minimum flow rate range of this product is 50 Reference flow rate 8HP 80LPM 16HP 155LPM Select the flow ...

Страница 25: ...iffer by the manufacturer of the flow switch If necessary adjust the flow rate detection screw after consulting with an expert and adjust to the minimum flow rate range Picture 4 Minimum flow rate range of this product is 50 Adjust the flow switch to touch the contact point when the flow rate reaches 50 of the flow rate Reference flow rate 8HP 80LPM 16HP 155LPM When the product operates while the ...

Страница 26: ...ndoor unit from the outside unit is 90m or above you must change the main pipe diameter according to the outside unit capacity in accordance with the following table This applies to both the liquid and gas pipes Total capacity of indoor units con nected to after branching kW 5 6 Ø6 35 Ø12 7 16 Ø9 52 Ø15 88 22 4 Ø9 52 Ø19 05 33 Ø9 52 Ø22 2 47 Ø12 7 Ø28 58 71 Ø15 88 Ø28 58 104 Ø19 05 Ø34 9 104 Ø19 0...

Страница 27: ...150 m 175 m Longest pipe length after 1st branching B C D e 40 m High Low difference Outside unit Indoor unit H 50 m High Low difference Indoor unit Indoor unit h 15 m High Low difference Indoor unit Indoor unit h 2 m L ℓ H h h1 When the pipe diameter B connected after 1st branching is larger than the main pipe diameter A Install the pipe with the pipe diameter B after 1st branching that is the sa...

Страница 28: ... Low difference Outside unit Indoor unit H 50 m High Low difference Indoor unit Indoor unit h 15 m High Low difference Indoor unit Indoor unit h 2 m L ℓ H h h1 Liquid pipe mm Gas pipe mm Low high pressure common pipe mm Ø15 88 19 05 Ø34 9 41 3 Ø19 05 Ú Slave2 outside unit Connecting branch pipe Ⓕ Pipe diameter between outside units F Liquid pipe mm Gas pipe mm Low high pressure common pipe mm Ø9 5...

Страница 29: ...e header branch a f it is recommended to install the unit so that the difference of the pipe dis tance connected to the indoor unit is minimized The large difference in pipe distance can cause performance difference between indoor units After the header branch you cannot use the Y branch and header branch When the pipe distance corresponding to the farthest indoor unit from the outside unit is 90m...

Страница 30: ...zed The large difference in pipe distance can cause performance difference between indoor units After the header branch you cannot use the Y branch and header branch When the pipe distance corresponding to the farthest indoor unit from the outside unit is 90m or above you must change the main pipe diameter according to the outside unit capacity in accordance with the following table This applies t...

Страница 31: ...nits After the header branch you cannot use the Y branch and header branch When the pipe distance corresponding to the farthest indoor unit from the outside unit is 90m or above you must change the main pipe diame ter according to the outside unit capacity in accordance with the following table This applies to both the liquid and gas pipes Liquid pipe mm Gas pipe mm Low high pressure common pipe m...

Страница 32: ...nit so that the difference of the pipe distance connected to the indoor unit is minimized The large difference in pipe distance can cause performance difference between indoor units After the header branch you cannot use the Y branch and header branch When the pipe distance corresponding to the farthest indoor unit from the outside unit is 90m or above you must change the main pipe diameter accord...

Страница 33: ...igh Low difference Indoor unit Indoor unit h 2 m L ℓ H h h1 When the pipe diameter B connected after 1st branching is larger than the main pipe diameter A Install the pipe with the pipe diameter B after 1st branching that is the same as the main pipe diameter A Ex When connecting with 150 of the indoor unit to 8 HP 1 Outside unit main pipe diameter 22 2 Gas pipe 9 52 Liquid pipe 2 Pipe diameter af...

Страница 34: ...nected to after branching kW 5 6 Ø6 35 Ø12 7 16 Ø9 52 Ø15 88 22 4 Ø9 52 Ø19 05 33 Ø9 52 Ø22 2 47 Ø12 7 Ø28 58 71 Ø15 88 Ø28 58 104 Ø19 05 Ø34 9 104 Ø19 05 Ø41 3 Liquid pipe mm Gas pipe mm For the first branch pipe B use the branch pipe that fits the main pipe diameter A Outside unit capacity Liquid pipe mm Gas pipe mm 40 48HP Ø19 05 Ø41 3 Longest pipe length Equivalent pipe length A B b A C e 150 ...

Страница 35: ...id pipe Therefore set the pipe diameter B after 1st branching to 22 2 Gas pipe 9 52 Liquid pipe of main pipe diameter A For the pipe length after the header branch c e it is recommended to install the unit so that the difference of the pipe distance connected to the indoor unit is minimized The large difference in pipe distance can cause performance difference between indoor units After the header...

Страница 36: ...mulated in the stopped outside unit If there is high low difference between the outside unit pipes oil can be accumulated to the outside unit on the lower location until the unit stops High Low difference between the outside units High Low difference between outside units pipes High Low difference between outside units pipes Location of main pipe Location of outside units Location of main pipe Loc...

Страница 37: ... x 0 061 20 x 0 061 10 x 5 x 0 022 0 CF 5 98 kg a ø6 35 10m b ø6 35 10m c ø6 35 10m d ø6 35 10m e ø6 35 10m u Special condition In case of the No of CST TQ RAC SE ARTCOOL SF models are over than 50 of the connected indoor units when the total No of connected indoor units are over than 50 of the max connectable indoor units n Additional refrigerant charging amount kg Ⓒ A x α B x ß AVG x ß A Total N...

Страница 38: ...hould be over 2m from the floor Wall mounted type Cassette type Adoption of ventilation system choose ordinary ventilation system or building ventilation system Limitation in piping work Prepare for earthquake and thermal stress Total amount of refrigerant in the system 0 44 kg m3 Volume of the room at which Indoor Unit of the least capacity is installed Note Fill in the f gas Label attached on ou...

Страница 39: ...g 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 heating cooling performance 8 A second branch cannot be made after a header These are shown by 9 The Multi V will stop due to an abnormality like excessive or insufficie...

Страница 40: ... on the joint mounting configuration If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint the connecting section should be cut with a pipe cutter Branch pipe should be insulated with the insulator in each kit When the number of pipes to be connected is smaller than the number of header branches install a cap to the unconnected branc...

Страница 41: ...tor in each kit Joints between branch and pipe should be sealed with the tape included in each kit Any cap pipe should be insulated using the insulator provided with each kit and then taped as described above B Pinched pipe Horizontal plane View from point B in the direction of the arrow Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure Insula...

Страница 42: ...terial with a finishing tape Power lines E D D B A C Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat resistant polyethylene so that no gap is observed in the joint between indoor unit and insulating material and insulating materials themselves When insulation work is insufficient there is a possibility of condensation...

Страница 43: ...D22 2 O D19 05 O D19 05 I D22 2 I D25 4 70 80 110 I D9 52 I D12 7 5 3 6 D I 2 5 9 D I I D9 52 I D12 7 I D6 35 I D12 7 332 321 74 376 404 96 471 517 125 416 444 96 371 394 83 I D34 9 O D31 8 I D22 2 O D22 2 I D28 58 I D31 8 O D19 05 I D28 58 120 90 120 130 120 110 70 O D15 88 I D9 52 I D12 7 O D12 7 I D6 35 I D9 52 I D15 88 I D19 05 I D22 2 I D22 2 I D19 05 I D15 88 I D12 7 I D15 88 I D19 05 I D22 ...

Страница 44: ...28 58 ID25 4 120 120 150 360 ID9 52 ID9 52 ID6 35 ID6 35 ID9 52 ID12 7 120 150 120 ID15 88 ID12 7 ID15 88 ID12 7 ID15 88 ID19 05 120 150 120 ID6 35 ID9 52 ID9 52 ID12 7 120 150 160 580 ID19 05 ID15 88 ID15 88 ID12 7 ID22 2 ID28 58 ID25 4 120 150 700 120 ID6 35 ID9 52 ID9 52 ID6 35 ID9 52 ID12 7 120 150 160 760 ID19 05 ID15 88 ID15 88 ID12 7 ID22 2 ID28 58 ID25 4 120 150 120 720 ID6 35 ID9 52 ID9 5...

Страница 45: ...n be judged good if the pressure has not be reduced after leaving for about one day after completion of nitrogen gas pressurization Note If the ambient temperature differs between the time when pressure is applied and when the pressure drop is checked apply the following correction factor There is a pressure change of approximately 0 1 kg cm2 0 01 MPa for each 1 C of temperature difference Correct...

Страница 46: ...e evacuated to 100 7kPa within 2 hrs repeat the steps of vacuum break and its drying Finally check if the vacuum gauge does not rise or not after maintaining the system in vacuum for 1 hr Vacuum pump Indoor unit Outside unit Close Close Close High low pressure common pipe Liquide pipe Gas pipe Liquid side Gas side Scale Use a graviometer One that can measure down to 0 1kg If you are unable to prep...

Страница 47: ... box is some times removed at the time of service work 5 Never connect the main power source to terminal block of transmission line If connected electrical parts will be burnt out 6 Use 2 core shield cable for transmission line O mark in the figure below If transmission lines of different sys tems are wired with the same multiplecore cable the resultant poor transmitting and receiving will cause e...

Страница 48: ...tside pressure being exerted on the terminal block Use an appropriate screwdriver for tightening the terinal screws A screwdriver with a small head will strip the head and make proper tighterning impossible Over tightening the terminal screws may break them u Precautions when laying power wiring Round pressure terminal Power wire Use round pressure terminals for connections to the power terminal b...

Страница 49: ...er system pass through the sub PCB for central control When connecting indoor unit with the shield cable ground at the grounding screw When connecting central controller with the shield cable ground at the grounding screw Refer to next page about the distance between main power cable and communication cable Front Panel Control Box and Wiring Location Installation Manual 49 ENGLISH ...

Страница 50: ...based on assumed length of parallel cabling up to 100m For length in excess of 100m the figures will have to be recalculated in direct proportion to the additional length of line involved 2 If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased If the lines are laid inside conduits then the following point must also be taken into ...

Страница 51: ...r unit separately from the power supply u Wiring of Main Power Supply and Equipment Capacity Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring reg ulations and guidance of each electric power company Make sure to use specified wires for connections so that no external force is imparted to terminal connections If con nections are not fi...

Страница 52: ...ion Cable 1 Outside Unit WARNING Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage Transmission 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 ...

Страница 53: ...Main Switch Main Switch IDU SODU DRY1 DRY2 GND INTERNET B A 12V Master Outside unit IDU SODU DRY1 DRY2 GND INTERNET B A 12V IDU SODU DRY1 DRY2 GND INTERNET B B B B A A A A 12V Master Outside unit Pull Box Installer option Pull Box Installer option u Example Connection of Transmission Cable 2 Outside Units WARNING Indoor Unit ground Lines are required for preventing electrical shock accident during...

Страница 54: ...t IDU SODU DRY1 DRY2 GND INTERNET B A 12V IDU SODU DRY1 DRY2 GND INTERNET B A 12V IDU SODU DRY1 DRY2 GND INTERNET B A 12V IDU SODU DRY1 DRY2 GND INTERNET B B B B B A A A A A 12V Master Outside unit Pull Box Installer option Pull Box Installer option u Example Connection of Transmission Cable 3 Outside Units WARNING Indoor Unit ground Lines are required for preventing electrical shock accident duri...

Страница 55: ...ction of communication cable must be installed like below figure between indoor unit to outside unit STAR type Abnormal operation can be caused by communication defect when connection of communication cable is installed like below figure STAR type Installation Manual 55 ENGLISH ...

Страница 56: ...layed in order after the power is connected This number represents the setting condition n Mode code If the applicable dip switch is not set correctly the product may not operate properly SW01B SW02B 7 segment SW01B 1 2 3 4 5 6 7 ON SW02B 1 2 3 4 5 6 7 ON Order Number Item 1 Model code 2 Total capacity HP 3 2 Heat pump model 4 25 Normal mode display If the dip switch is set incorrectly it is not d...

Страница 57: ...mode at shipping factory Standard Short Pipe Length Long Pipe Length 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON SW01B Setting SW02B Setting Remark Normal mode at shipping factory Slave1 outside setting at the 2units Slave2 outside setting at the 3units 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2...

Страница 58: ...0V Functions 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON n After operating the dip switch to set the additional function you must reset the power of the main PCB to reflect the changed function After recovering the dip switch to cancel the additional function you must reset the power of the main PCB to reflect the change n If the dip switch is not set accurately it can have...

Страница 59: ...ndoor unit PCB always perform auto address setting again If power supply is not applied to the indoor unit operation error occurs Auto addressing is only possible on the main PCB Auto addressing has to be performed after 3 minutes to improve communication u The Procedure of Automatic Addressing Auto addressing setting end Numbers of indoor unit connection set whose addressing is completed are indi...

Страница 60: ...ber with a wired remote control To control several sets of Indoor Units into a group set the group ID from 0 to F for this purpose Terminal block on the main PCB SODU IDU INTERNET DRY1 DRY2 B A B D A C GND 12V B A B A Group recognizing the simple central controller No 0 group 00 0F No 1 group 10 1F No 2 group 20 2F No 3 group 30 3F No 4 group 40 4F No 5 group 50 5F No 6 group 60 6F No 7 group 70 7...

Страница 61: ...PCB Dip SW of Master Outside Unit In case of no Cool Heat Selector connect signal terminal block as below figure And description Connect signal terminal block as below figure and description How to set mode without Cool Heat Selector Cooling Mode Setting GND Connection Off Open Heating Mode Setting GND Connection GND Connection Fan Mode Setting Off Open GND Connection Mode Change Push Button Heati...

Страница 62: ...ny alien particles inside the pipes and execute an air purge to remove an air within the pipes to make the water supply smoother Clean all the strainers of water pipe including around 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 80LPM based on 8HP ...

Страница 63: ...ester device DC 500V between the power terminal block and grounding and check whether it is 2 0MΩ or above when measured If the resistance is 2 0MΩ or less do not operate the product Precaution Never check the insulation resistance for the terminal control board The control board can be damaged If you leave the system turned off right after the installation or for a long period of time the refrige...

Страница 64: ...sulphuric acid nitric acid and etc shouldn t be used due to its corrosion 2 Be sure to check if the gate valve of inflow outflow pipe and the valve for outflow pipe are properly closed when cleaning 3 Connect the water pipe for cleaning with the chemical solvent through the service plug of the pipe and fill up the panel heat exchanger with 50 C 60 C of cleaning solvent and circulate it with the pu...

Страница 65: ...lcium chloride brine can cause corrosion on the plate type heat exchanger and must not be used If the anti freeze liquid is left as is it absorbs the moisture from the air to cause a drop in the density leading to freezing of plate type heat exchanger Therefore minimize the contact surface with the atmosphere and periodically measure the density of the brine to supplement the brine as needed to ma...

Страница 66: ... of master outside unit Compressor maintenance by slave1 outside unit high pressure switch Flow rate insufficiency or flow switch trouble of slave1 outside unit Compressor maintenance by slave2 outside unit high pressure switch Flow rate insufficiency or flow switch trouble of slave2 outside unit Master outside unit input voltage of 290V or above or 173V or less Slave1 outside unit input voltage o...

Страница 67: ...e2 outside unit low pressure over drop Failing to transmission between inverter Micom and converter Micom of master outside unit Failing to transmission between inverter Micom and converter Micom of slave1 outside unit Failing to transmission between inverter Micom and converter Micom of slave2 outside unit Master outside unit inverter compressor current detection CT sensor disconnection or short ...

Страница 68: ...ne phase missing Slave1 outside unit power line phase missing Slave2 outside unit power line phase missing Excessive connection of indoor unit connection display value Different from outside unit When the inverter controller signal is not received from the master out side unit inverter controller When the inverter controller signal is not received from the slave1 out side unit inverter controller ...

Страница 69: ...iquid pipe temperature sensor disconnection or short circuit Slave1 outside unit liquid pipe temperature sensor disconnection or short circuit Slave2 outside unit liquid pipe temperature sensor disconnection or short circuit Master outside unit over cooling inlet temperature sensor disconnec tion or short circuit 5 2 3 Communication error with slave2 outside unit inverter controller 5 3 Communicat...

Страница 70: ... current Slave2 outside unit static speed compressor burn locking and over current Plate type heat exchanger freeze prevention error Water temperature sensor open short Communication error between main MICOM and sub MICOM 1 1 4 2 Slave1 outside unit over cooling inlet tempera ture sensor error 1 1 4 3 Slave2 outside unit over cooling inlet tempera ture sensor error 1 1 5 1 Master outside unit over...

Страница 71: ... main tained constantly Closed type cooling tower Heat source water of the cooling tower is supplied directly to the outside unit system Open type cooling tower Closed type cooling tower 1st side 2nd side Heat exchange When the open type cooling tower is used and the water supply is directly connected to the 2nd heat exchanger product damage by alien particle cannot be repaired for free Always use...

Страница 72: ...g concentration Limiting concentration is the limit of Freon gas concentration where immediate measures can be taken with out hurting human body when refrigerant leaks in the air The limiting concentration shall be described in the unit of kg m3 Freon gas weight per unit air volume for facilitating calculation Limiting concentration 0 44kg m3 R410A Outside unit No 1 system Flow of refrigerant Indo...

Страница 73: ...educing the outside refrigerant qty Pay a special attention to the place such as a basement etc where refrigerant can stay since refrigerant is heavier than air Outside unit Indoor unit Smallest room R410A Refrigerant concentration kg m3 Total amount of replenished refrigerant in refrigerant facility kg Capacity of smallest room where indoor unit is installed m3 In case the result of calculation e...

Страница 74: ... CN_22 MAIN PCB C_Box Flow Switch Solenoid Valve 1 2 3 4 5 A 5 B Water Out Water In Water Solenoid Valve Control Set the dip switch refer to Fig 1 and turn on the power when you individual control for water solenoid valve control Figure 1 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON Central Control Use DDC Port Individual Control Use 220V Out Port 74 Outside Unit ...

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