LG ARUB100LT2 Installation Manual Download Page 30

Page: 30 / 93

Outdoor Unit

Refrigerant piping installation

Refrigerant piping system

Example : 3 outdoor units, 4 HR units and 11 indoor units

Outdoor unit
Y branch
HR unit
Indoor unit

WARNING

* : Serial connection of HR units : Capacity sum of indoor units

≤

160kBtu/hr

• Refer to the HR unit PCB part for the valve group control setting.

• It is recommended that difference in pipe lengths between an HR unit and indoor units, for example

difference in length of a, b, c, and d, be minimized. The larger difference in pipe lengths, the more different
performance between indoor units.

• Piping length from outdoor branch to outdoor unit

≤

10m, equivalent length : max 13m (for 18HP or more)

❊

If the large capacity indoor units (Over 5 HP; using over Ø15.88/Ø9.52) are installed, it should be used the
Valve Group setting

D10

"a"

"b"

Master

Slave 1

Slave 2

■

Case 1 ("a")

: Maximum height is 15 m if you install with Y branch.

■

Case 2 ("b")

: Height is zero(0) m in HR unit serial connector.

Summary of Contents for ARUB100LT2

Page 1: ... 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 TYPE ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH PORTUGUESE ...

Page 2: ...utions 3 Installation Process 7 Outdoor Unit Information 9 Select the Best Location 10 Installation Space 12 Lifting method 16 Installation 17 Refrigerant piping installation 22 Electrical Wiring 43 HR unit PCB 52 Master Unit and Slaver Unit PCB 63 Test Run 70 Caution For Refrigerant Leak 91 ...

Page 3: ...ay 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 always...

Page 4: ...p on or fall onto the outdoor unit This could result in personal injury and product damage Operation Do not damage or use an unspecified power cord There is risk of fire electric shock explosion or injury Use a dedicated outlet for this appliance There is risk of fire or electrical shock Be cautious that water could not enter the product There is risk of fire electric shock or product damage Do no...

Page 5: ...nnections securely so that the outside force of the cable may not be applied to the terminals Inadequate connection and fastening may generate heat and cause a fire Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Install and insulate the drain hose to ensure that wat...

Page 6: ...ower switch turned on during the operational season 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 mai...

Page 7: ... 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 the ceiling Fit facing panels Re...

Page 8: ...act LG Electronics for the additional anticorrosion treatment 2 Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Installation guide at the seaside Selecting the location Outdoor Unit 1 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 si...

Page 9: ...9 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 34 9 1 3 8 34 9 1 3 8 34 9 1 3 8 34 9 1 3 8 28 58 1 1 8 28 58 1 1 8 28 58 1 1 8 28 58 1 1 8 28 58 1 1 8 28 58 1 1 8 28 58 1 1 8 Unit Hp Equivalent Hp Model Name Combination Unit Refrigerant kg CF Correction Factor kg No of Max Connectable Indoor units Net Weight kg Dimensions W H D mm inch Connecting Pipes Liquid mm inch Suction Gas mm ...

Page 10: ...is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing the outdoor unit If installation site is area of heavy snowfall then the following directions should be observed Make the foundation as high as possible Fit a snow protection hood Select installation location considering following conditions to avoid bad condition when additionally perform ing de...

Page 11: ... 453 174 174 182 218 419 61 137 124 128 30 60 NOTICE 2 NOTICE 2 450 450 100 more Serviceing space 100 more 100 more Serviceing space Serviceing space 100 more Serviceing space 1 Be sure to install the inspection door at the control box side 2 If reducers are used servicing space must be increased equal to reducer s dimension NOTICE Unit mm No Part Name Description PRHR040 PRHR030 PRHR020 1 Low pre...

Page 12: ...ront Side Rear Side A B C 700 mm or more Control box is of a open close type 250 mm or more 150 mm from the wall C A B C A B h H Front Side Rear Side C A B C Front Side Rear Side C A B C Front Side Rear Side C A B C A B Control Box Front Side Rear Side Front Side Rear Side Side view Top view Side view Top view C E D A B 250 mm or more 350mm or more at the coastal area 150 mm from the wall B A B A ...

Page 13: ... mm or more 250 mm or more Air guide Air outlet guide procured at the side A B D E E D A Front Side B Rear Side Door When there is an obstruction above the unit When unit is surrounded by walls 700 mm or more Control box is of a open close type 250 mm or more A B A B B B Front Side Rear Side A B B B Front Side Rear Side A B B B Front Side Rear Side Front Side Rear Side A B B B ...

Page 14: ...Front Side Be opened 900mm or more control box is of a open close type 250 mm or more A B C 150 mm or more D Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Side Front Side Rear Si...

Page 15: ...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 50cm 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 10cm always remove snow for operation 1 The height of H frame must b...

Page 16: ...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 sup...

Page 17: ...anchor bolt Individual installation Example of collective installation Installation foot Location of anchor bolt 10 383 10 383 700 2 900 2 900 2 900 2 UW1 UW1 UW1 383 383 700 2 900 2 900 2 900 2 UW1 UW1 UW1 10 10 383 383 900 2 900 2 900 2 UW1 UW1 UW1 10 10 150 533 900mm ...

Page 18: ... Beam Concrete base 100 WARNING Be sure to install unit in a place strong enough to withstand its weight Any lack of strength may cause unit to fall down resulting 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...

Page 19: ... tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 4 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 Main cause of gas leakage is defect in flaring work Carry out correct flaring work in the following procedure Copper tube 90 Slanted Uneven Rough Pipe Reamer Po...

Page 20: ...ing torque Applying too much torque may cause the flares to crack After all the piping has been connected use nitrogen to perform a gas leak check 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 torqu...

Page 21: ...phere dew point temperature 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 Adiabatic glass wool with thickness 10 to 20mm Stick glass wool on all air conditioners that are located in ceiling atmosphere In addition to the normal heat insulation thickness more than 8mm for refrigeran...

Page 22: ...rform brazing with a nitrogen blow into the service 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 Service port Make the refrigerant pipe vacuum and charge it using the service port Always reattach caps after completing work tightening torque of service cap 14 N m 140k...

Page 23: ...amaged due to entering of rats animals etc CAUTION When you use the Hi Low pressure common pipe to connect 2 3 ODU please remove the factory supplied rubber cap as shown in the figure When installing just one ODU please make sure to remove the factory supplied rubber cap and replace it by brazing the copper cap supplied with manual in ODU If you do not replace the factory supplied rubber cap there...

Page 24: ...Liquid Pipe High Pressure Gas Pipe Model ARCNB20 ARCNB20 ARCNB30 Ø31 8 Ø38 1 Ø28 58 Ø28 58 Ø19 05 OD19 05 Ø22 2 Ø22 2 Ø28 58 Ø12 7 Ø9 52 Ø12 7 Ø19 05 Ø12 7 Ø15 88 Ø34 9 OD28 58 Ø19 05 OD34 9 Ø15 88 Ø31 8 Ø28 58 Ø28 58 Ø19 05 Ø22 2 Ø19 05 Ø22 2 Ø34 9 OD22 2 Ø15 88 Ø28 58 Ø19 05 Ø15 88 Ø22 2 Ø22 2 Ø22 2 OD22 2 Ø15 88 Ø19 05 OD12 7 Ø22 2 Low Pressure Gas Pipe Liquid Pipe High Pressure Gas Pipe Model ...

Page 25: ... Gas pipe Liquid pipe Liquid pipe Liquid pipe HR Unit 1 2 3 4 CAUTION Whenever connecting the indoor units with the HR unit install the indoor units in numerical order from No 1 Ex In case of installing 3 indoor units No 1 2 3 O No 1 2 4 X No 1 3 4 X No 2 3 4 X Installation procedure for HR unit Six sided Nut M10 or M8 Hanger metal Hanger metal Hanger metal Flat washer Flat washer Flat washer M10 ...

Page 26: ...40 HR unit is 47kW 160kBtu hr In case of installation of four indoor units of 14 1kW 48kBtu hr use two PRHR020 s rather than one PRHR040 Gas pipe Ø15 88 Liquid pipe Ø9 52 Brazing Type 1 2 3 4 Remove caps on The brazing part Liquid pipe Low pressure gas pipe High pressure gas pipe Joint Method of HR Unit Big Duct URNU76GB8 URNU96GB8 Joint Method is required when B5 B8 chassis is installed In Joint ...

Page 27: ...it reducer PRHR020 OD22 2 Ø19 05 Ø15 88 OD15 88 Ø12 7 Ø6 35 OD9 52 Ø6 35 OD9 52 OD19 05 Ø15 88 Ø12 7 OD22 2 Ø19 05 Ø15 88 OD15 88 Ø12 7 PRHR030 PRHR040 Before 2011 4 1 Product PRHR040 After 2011 4 1 Product OD19 05 Ø15 88 OD28 58 Ø22 2 Ø19 05 OD12 7 Ø9 52 OD12 7 Ø9 52 OD15 88 Ø12 7 OD22 2 Ø19 05 Ø15 88 OD15 88 Ø12 7 Ø9 52 OD15 88 Ø12 7 OD19 05 Ø15 88 OD28 58 Ø22 2 Ø19 05 Unit mm ...

Page 28: ... or insufficient refrigerant At such a time always properly charge the unit When servicing always check the notes concerning both the pipe length and the amount of additional refrigerant 9 Never use refrigerant to perform an air purge Always evacuate using a vacuum pump 10 Always insulate the piping properly Insufficient insulation will result in a decline in heating cooling perfor mance drip of c...

Page 29: ...t evacuation If a different refrigerant or air is mixed with the original refrigerant the refrigerant cycle may malfunction and the unit may be damaged After selecting diameter of the refrigerant pipe to suit total capacity of the indoor unit connected after branching use an appropriate branch pipe set according to the pipe diameter of the indoor unit and the installation pipe drawing WARNING Do n...

Page 30: ...fference in length of a b c and d be minimized The larger difference in pipe lengths the more different performance between indoor units Piping length from outdoor branch to outdoor unit 10m equivalent length max 13m for 18HP or more If the large capacity indoor units Over 5 HP using over Ø15 88 Ø9 52 are installed it should be used the Valve Group setting A1 C1 D1 D2 D3 D4 D6 D7 D8 D9 D10 E1 E2 A...

Page 31: ... 76 400 Ø9 52 3 8 Ø19 05 3 4 Ø15 88 5 8 33 112 600 Ø9 52 3 8 Ø22 2 7 8 Ø19 05 3 4 47 160 400 Ø12 7 1 2 Ø28 58 1 1 8 Ø22 2 7 8 71 242 300 Ø15 88 5 8 Ø28 58 1 1 8 Ø28 58 1 1 8 104 354 900 Ø19 05 3 4 Ø34 9 1 3 8 Ø28 58 1 1 8 104 354 900 Ø19 05 3 4 Ø41 3 1 5 8 Ø28 58 1 1 8 Liquid pipe mm inch Low pressure High pressure Gas pipe mm inch C3 C4 B1 D10 E1 A3 H h CAUTION Assume equivalent pipe length of Y ...

Page 32: ...t Indoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit 2 Same horizontal level 1 under 40m 2 Same horizontal level Y branch Height It s not allowed Keep the sum of indoor capacity is under 160kBtu hr 1 Keep the 40m distance from the first branch to the farthest indoor 2 Keep the horizontal level between HR units for example the same flour ...

Page 33: ...main pipe diameter of 22HP outdoor unit is Ø15 88 Liquid pipe Ø34 9 Low pressure gas pipe Ø28 58 High pressure gas pipe it should be used as the diameter of the main pipe and the connection pipe between 1st and 2nd indoor branches Refrigerant pipe diameter before 1st branch A E F Liquid pipe 8 10HP Ø9 52 Ø12 7 12 14 16HP Ø12 7 Ø15 88 18 20 22 24HP Ø15 88 Ø19 05 26 28 30 32 34 36 38 40 42 44 48HP Ø...

Page 34: ...Example of Pipe Connection between Outdoor 1 Pipe Connection between Outdoors Less than 10 m h1 Less than 2 m 2 In case pipe length between outdoors is less than 2m Differnce in height between outdoor units Less than 5m h1 5m Longest Pipe Length between Outdoors Less than 10m after 1st branch ...

Page 35: ...oor units Is 2 m or more prepare a oil trap 200 mm or more as shown below on the gas pipe line location Less than 2 m from branch 4 Example of wrong connection Less than 2m 2 m or more Less than 2 m 2 m or more Less than 2m 2 m or more Oil Trap 200 mm or more Oil Trap Oil Trap Oil is accumulating in outdoor units when system stops Oil is accumulating in lower level outdoor units when system stops ...

Page 36: ... CF 40 x 0 061 20 x 0 061 20 x 0 061 10 x 5 x 0 022 0 5 HR 0 CF 6 48 kg A Ø12 7 50m B Ø9 52 10m C Ø9 52 10m D Ø9 52 10m E Ø6 35 10m Special condition In case of the No of CST TE 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 Additional refrigerant charging amount kg A x B x ß A...

Page 37: ...ilation system or building ventilation system Limitation in piping work Prepare for earthquake and thermal stress WARNING Refer to model information since the CF value of correction factor differs depending on model 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 HP 8 10 12 14 16 18 20 22 24 26 Product Charge kg 8 8 8 ...

Page 38: ...joints Insulator for field piping Tape field supply Ensure that the branch pipes are attached horizontally or vertically see the diagram below There is no limitation 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 i...

Page 39: ... 19 05 I D 15 88 I D 12 7 I D 19 05 I D 15 88 I D 28 58 I D 22 2 I D 12 7 I D 19 05 I D 22 2 I D 34 9 I D 34 9 I D 22 2 I D 28 58 I D 28 58 I D 38 1 I D 41 3 I D 34 9 I D 38 1 I D 12 7 I D 15 88 I D 12 7 I D 15 88 I D 15 88 I D 12 7 I D 25 4 O D 19 05 O D 19 05 I D 22 2 I D 28 58 O D 25 4 I D 22 2 I D 15 88 I D 19 05 I D 12 7 I D 12 7 I D 19 05 I D 15 88 I D 19 05 I D 22 2 I D 25 4 O D 22 2 O D 38...

Page 40: ...nder that condition for over 1 hour confirm the vacuum gauge rises If it rises the system may contain moisture or leak 2 Following should be executed if there is a possibility of mois ture remaining inside the pipe Rainwater may enter the pipe during work in the rainy sea son or over a long period of time After evacuating the system for 2 hours give pressure to the system to 0 05MPa vacuum break w...

Page 41: ...ompres sor It may cause faults of the compressor Use a gravimeter accurate to 0 1kg Pipe to be vacuum liquid pipe high pressure gas pipe low pressure gas pipe is vacuumed via the HR unit If other refrigerants are mixed in the original refrigerant a refrigerant cycle may cause malfunction or damage Add accurate refrigerant quantity via calculation Too much or too little refrigerant may cause proble...

Page 42: ...nection part and cutting part of heat insulation material with a finishing tape D G E E B A E F C Power lines 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 wo...

Page 43: ...ot affected by electric noise from the power source Do not run it through the same conduit 3 Be sure to provide designated grounding work to outdoor unit 4 Give some allowance to wiring for electrical part box of Indoor HR unit and outdoor units because the box is sometimes removed at the time of service work 5 Never connect the main power source to terminal block of transmission line If connected...

Page 44: ...k in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below For wiring use the designated power wire and connect firmly then secure to prevent outside 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 ti...

Page 45: ...hen the central control system is connected to the outdoor unit a dedicated PCB must be connected between them When connecting communication line between out door unit and indoor HR units with shielded wire connect the shield ground to the earth screw WARNING The temperature sensor for outdoor air should not be exposed to direct sunlight Provide an appropriate cover to intercept direct sunlight Fr...

Page 46: ...e 1 The figures are 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...

Page 47: ...rene sheathed flexible cord 6 Don t install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply WARNING Follow ordinance of your governmental organization for technical standard related to electrical equipment wiring reg ulations and guidance of each electric power company Be sure to use specified wires for connections so that no external fo...

Page 48: ...door unit ground lines are required for preventing electrical shock accident in 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 ...

Page 49: ...een Indoor and Master Outdoor unit Slave Outdoor unit IDU SODU DRY1 DRY2 GND INTERNET B A 12V Master Outdoor 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 Outdoor unit Slave Master Pull box installer option Pull box installer option Example Connection of Communication Cable 2 Outdoor Units WARNING Indoor unit ground lines are required for p...

Page 50: ...utdoor unit IDU SODU DRY1 DRY2 GND INTERNET B A 12V Slave1 Outdoor unit IDU SODU DRY1 DRY2 GND INTERNET B A 12V IDU SODU DRY1 DRY2 GND INTERNET B A 12V Master Outdoor unit IDU SODU DRY1 DRY2 GND INTERNET B B B B B A A A A A 12V Master Outdoor unit Pull box installer option Pull box installer option Example Connection of Communication Cable 3 Outdoor Units WARNING Indoor unit ground lines are requi...

Page 51: ...BUS type Connection of communication cable must be installed like below figure between indoor unit to outdoor unit STAR type Abnormal operation can be caused by communication defect when connection of communication cable is installed like below figure STAR type HR unit HR unit HR unit HR unit ...

Page 52: ...p setting No 7 Use only in factory production preset to OFF No 8 Use only in factory production preset to OFF SW02M 1 Selection of the method for addressing valves of an HR unit Auto Manual Auto Manual SW02M Dip switch for setup of the function of HR unit SW03M SW04M SW01M SW03M SW04M Switch for manual valve addressing SW01M SW05M Switch for addressing HR unit 7 SEG 1 valve housing 1 cooling valve...

Page 53: ... 3 rooms Connected 4 rooms Connected Initial Setting WARNING If you want to use a PRHR030 for 2 rooms HR unit after closing the 3rd pipes set the dip switch for 2 rooms HR unit If you want to use a PRHR040 for 3 rooms HR unit after closing the 4th pipes set the dip switch for 3 rooms HR unit If you want to use a PRHR040 for 2 rooms HR unit after closing the 3rd and 4th pipes set the dip switch for...

Page 54: ...Indoor Unit Indoor Unit Large capacity indoor unit Large capacity indoor unit Large capacity indoor unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Models Gas Pipe Liquid pipe ARBLB03320 I D 28 58 I D 25 4 O D 22 2 I D 22 2 I D 19 05 I D 12 7 I D 15 88 I D 9 52 I D 19 05 I D 15 88 I D 22 2 I D 9 52 I D 6 35 I D 9 52 I D 6 35 I D 12 7 I D 9 52 I D 6 35 I...

Page 55: ... the central control address of the connected indoor unit SW01M selection of the valve to address SW03M increase in the digit of 10 of valve address SW04M increase in the last digit of valve address Prerequisite for manual valve addressing central control address of each indoor unit must be preset differ ently at its wired remote control 1 2 3 4 1 2 3 4 1 2 3 4 3 4 3 4 3 4 S W No Setup No 1 Manual...

Page 56: ...units and HR units SW01B DIP S W SW02B DIP S W 7 Segment SW02V Auto addressing SW01V Data confirm 2 Auto pipe detection Turn No 1 of SW02M of HR unit PCB off Confirm that the setting of No 2 3 of SW02M corresponds with the number of indoor units Reset the power of HR unit PCB Turn off the No 5 DIP S W of main unit PCB when outdoor temperature is below 15 C Turn on the No 5 DIP S W of main unit PCB...

Page 57: ...ress in wired remote control of indoor unit In this case set the HR unit manual pipe address according to central control address of indoor unit Pipe which is not connected with indoor unit should be set different address with pipe Connected with indoor unit If addresses are piled up corresponding valve is not working If you want to change the setting of manual pipe you should do it on HR unit PCB...

Page 58: ...EG of the outdoor unit main PCB Are the number of indoor units connected to the outdoor unit wiring and displayed one equal Turn HR unit indoor unit and outdoor unit on in the order named Wait for 3 minutes Check power and communication wiring between outdoor HR and indoor units Retry indoor unit auto addressing after checking trouble Incompletion of auto addressing Press SW02V of the outdoor unit...

Page 59: ...ss SW01V of the outdoor unit main PCB for 5 seconds 88 is displayed on 7 SEG of the outdoor unit main PCB Outdoor unit is operated for 5 30 minues The number of indoor units detected is displayed for 30 seconds on the outdoor unit PCB after outdoor unit stopped Display error on outdoor unit PCB Display error on HR unit PCB Outdoor unit PCB HR HR unit number Valve number HR unit 200 Check the HR un...

Page 60: ...e valve Reset the power of outdoor unit PCB Wait for about 5 minutes The number of the indoor units installed is displayed Ex HR The number of the indoor Check the central control address of indoor and HR unit Make sure that reset the outdoor unit power when changing the central control unit Are the number of indoor units connected to the outdoor unit and displayed one equal Execute in case of Aut...

Page 61: ...tup and Contents Operation Turn dip S W No 1 on to address valve 1 Display Existing value saved in EEPROM is displayed in 7 SEG Operation Set the digit of 10 to the number in Group High data of the wired remote control connected to the corresponding indoor unit to the valve 1 by pressing left tack S W Display Digit increasing with the times of pressing tack S W is displayed in left 7 SEG Operation...

Page 62: ...nit Operation Turn dip S W No 1 on Display 11 is displayed in 7 SEG No 1 2 Display and Setup Setup and Contents Operation Turn dip S W No 1 on 7 SEG disappeared SW01M SW03M SW01M SW03M Identification of Manual Valve ID Address Operation more than 2 dip switches turned on Display Er is displayed in 7 SEG No 1 Display and Setup Setup and Contents SW01M SW03M ...

Page 63: ...ENGLISH Installation Manual 63 Main PCB SW01B DIP S W SW02B DIP S W 7 Segment SW02V Auto addressing SW01V Data confirm Main PCB Main PCB ...

Page 64: ...y appeared at the 7 segment in 5 seconds after applying the power This number represents The setting condition For example R410A 3 Units Master model code Slave1 model code Slave 2 model code Total capacity 2 25 180 1 255 Master model code 1 255 Slave1 model code 1 255 Slave2 model code 8 48HP HP number sum of main capacity and sub capacity 1 cooling only 2 heat pump 25 Normal 180 Model type ARUB ...

Page 65: ...ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sno Refrigerant Checking w 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 ...

Page 66: ...ll the refrigerant flows back into the ODU Refer Service manual Dip switch Black button SW01V All Valves EEV should be open Refer Service manual Pipe Search Mode1 Outdoor air temp 15 C Pipe Search Mode2 Outdoor air temp 15 C 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3...

Page 67: ... 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 ON 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Unit Back Up SW01B Setting Inv Back Up Remarks SW02B Setting Function Unit Back Up SW01B Setting Inv Back Up Remarks SW02B Setting Function 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...

Page 68: ...and Indoor Unit number 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...

Page 69: ...Valve address and central control address of its corresponding indoor unit should be set identical in manual addressing Valve 04 EX Valve 03 Valve 02 Valve 01 Indoor unit 04 Indoor unit 03 Indoor unit 02 Indoor unit 01 Central control address HR unit ...

Page 70: ...s than 2 MΩ turning on the main power supply and energizing the crankcase heater for more than 6 hours will cause the refrigerant to evaporate increasing the insulation resistance Check if Liquid pipe High Pressure Gas Low Pressure Gas are fully opened NOTE Be sure to tighten caps Check if there are any problems in automatic addressing or not Check and confirm that there are no error messages in t...

Page 71: ... Motor failure Bad ventilation around outdoor heat exchanger Bad connector contact Coil failure EEV clogged EEV clogged Check resistance between terminals and chassis Check resistance between terminals and chassis Check the outdoor fan operation after being turned the outdoor units off for some time Remove obstacles around the outdoor units Check connector Check resistance between terminals Servic...

Page 72: ... until 508 is displayed Judging sensor normality Error Display Refrigerant Auto Charging Main pcb LED Note 4 Press the black button on the main PCB for 2 sec Main PCB SW01V Press the black button for 2 sec after turning off all of dip S W Refrigerant Checking Press the black button until 608 is displayed Refrigerant Checking Don t Perform Sensor Checking No Yes Yes No Completed Note 1 Sensor check...

Page 73: ...Last number represents outdoor unit number 1 Master 2 Slave 1 3 Slave 2 4 Slave 3 Indoor unit number follows auto addressing number To check the LGMV Data ex Indoor unit No 2 Pipe inlet temperature sensor error ex Outdoor Master Unit Liquid pipe temperature sensor error 1 Outdoor Air Temperature 2 Heat Exchanger 1 Front side 3 Heat Exchanger 2 Rear side 4 Inverter Comp Discharge Temperature 5 Cons...

Page 74: ... off all of dip S W Yes No Press the black button on main PCB Press until 508 is displayed Main PCB SW01V IDU runs with cooling mode In designated order Main PCB SW01V Press the black button IDU and ODU are turned off when Auto Charging is completed Close the valve Press the black button 1 Refrigerant Auto Charging Process Main PCB SW01V Completed 2 Note 1 After installing the refrigerant charging...

Page 75: ...rging function 1 Temperature Range Error In case that IDU or ODU is out of range 2 Low Pressure Descent Error In case the system runs at low pressure limit for over 10 minutes 3 Judging rapid refrigerant inflow In case the liquid refrigerant flows in because of not using desig nated Capillary Assembly 4 Instability Error In case the high low pressure target doesn t get satisfied for some time afte...

Page 76: ...g off all of dip S W Completed Press the black button on main PCB Press until 608 is displayed Main PCB SW01V IDU runs with cooling mode in order Main PCB SW01V Press the black button on main PCB Main PCB SW01V Note 1 IDU ODU are turned off Note Judging Refrigerant Amount Note 1 In case air temperature is out of guaranteed temperature refrigerant checking function may end without performing refrig...

Page 77: ...system will be OFF 2 Excess of Refrigerant 619 After remove the 20 of calculated total refrigerant recharge the refrigerant by using Refrigerant Auto Charging Function 3 Scarcity of Refrigerant 629 Charge the refrigerant by using Refrigerant Auto Charging Function 4 Impossible to Judge 639 IF the system is not in order check the other problem except refrigerant CAUTION 1 Guaranteed Temperature ran...

Page 78: ...he fan max RPM is operated setting RPM Night silent operation end 9 hours after Night silent operation is started the function should be stopped automatically Main PCB Power Reset Setting the Fan Max RPM Setting Complete Dip S W No 12 14 ON Master ODU SW01S Master ODU SW01B SW01V SW02V Note 1 Max RPM setting method Example of Max RPM Setting 1 time 1 time 1 time 1 time 1 time 1 time 1 time 1 time ...

Page 79: ...No 11 14 Power reset Vacuum mode cancellation Power Reset DIP switch setting High static pressure No 13 Low static pressure No 12 Static pressure compensation mode setting method Static pressure compensation mode cancellation method DIP switch OFF Power Reset Static pressure compensation mode is set Static pressure compensation mode is cancelled CAUTION Vacuum Mode Static pressure compensation mod...

Page 80: ...ssor IPM Fault Slave2 Outdoor Unit Inverter Compressor IPM Fault Slave3 Outdoor Unit Inverter Compressor IPM Fault Inverter Board Input Over Current RMS of Master Outdoor Unit Inverter Board Input Over Current RMS of Slave1 Outdoor Unit Inverter Board Input Over Current RMS of Slave2 Outdoor Unit Inverter Board Input Over Current RMS of Slave3 Outdoor Unit Air temperature sensor of indoor unit is ...

Page 81: ...nit DC Voltage Over Charging Master Outdoor Unit Inverter Compressor Fault OR Drive Fault Slave1 Outdoor Unit Inverter Compressor Fault OR Drive Fault Slave2 Outdoor Unit Inverter Compressor Fault OR Drive Fault Slave3 Outdoor Unit Inverter Compressor Fault OR Drive Fault Master Outdoor Unit Inverter Compressor DC link Low Voltage Slave1 Outdoor Unit Inverter Compressor DC link Low Voltage Slave2 ...

Page 82: ...harge Temperature System is turned off by Slave1 Outdoor Unit Inverter Compressor High Discharge Temperature System is turned off by Slave2 Outdoor Unit Inverter Compressor High Discharge Temperature System is turned off by Slave3 Outdoor Unit Inverter Compressor High Discharge Temperature System is turned off by Master Outdoor Uunit Constant Speed High Discharge Temperature System is turned off b...

Page 83: ...Pressure Sensor open or short Slave1 Outdoor Unit High Pressure Sensor open or short Slave2 Outdoor Unit High Pressure Sensor open or short Slave3 Outdoor Unit High Pressure Sensor open or short Master Outdoor Unit Air Temperature Sensor open or short Slave1 Outdoor Unit Air Temperature Sensor open or short Slave2 Outdoor Unit Air Temperature Sensor open or short Slave3 Outdoor Unit Air Temperatur...

Page 84: ...nger Temperature Sensor Rear side open or short Slave3 Outdoor Unit Heat Exchanger Temperature Sensor Rear side open or short Master Outdoor Unit Heat Exchanger Temperature Sensor Front side Fault Slave1 Outdoor Unit Heat Exchanger Temperature Sensor Front side Fault Slave2 Outdoor Unit Heat Exchanger Temperature Sensor Front side Fault Slave3 Outdoor Unit Heat Exchanger Temperature Sensor Front s...

Page 85: ...r PCB of Slave2 Outdoor Unit Access Error of Inverter PCB of Slave3 Outdoor Unit Restriction of Master Outdoor Unit Restriction of Slave1 Outdoor Unit Restriction of Slave2 Outdoor Unit Restriction of Slave3 Outdoor Unit Excessive capacity of indoor units Communication error inverter PCB Main PCB Communication error inverter PCB Main PCB Communication error inverter PCB Main PCB Communication erro...

Page 86: ...Error Slave2 Outdoor Unit Fan DC Link High Voltage Error Slave3 Outdoor Unit Fan DC Link High Voltage Error Constant CT Sensor Error of Master Outdoor Unit Constant CT Sensor Error of Slave1 Outdoor Unit Constant CT Sensor Error of Slave2 Outdoor Unit Constant CT Sensor Error of Slave3 Outdoor Unit PFC CT Sensor Error of Master Outdoor Unit PFC CT Sensor Error of Slave1 Outdoor Unit PFC CT Sensor ...

Page 87: ...ting EEPROM Communication Fail Between Slave1 Outdoor Unit Fan MICOM and EEPROM or omitting EEPROM Communication Fail Between Slave2 Outdoor Unit Fan MICOM and EEPROM or omitting EEPROM Communication Fail Between Slave3 Outdoor Unit Fan MICOM and EEPROM or omitting EEPROM Master Outdoor Unit Fan Over Current Error Slave1 Outdoor Unit Fan Over Current Error Slave2 Outdoor Unit Fan Over Current Erro...

Page 88: ...ster Outdoor Unit Fan DC Link Input Voltage is under 380V Slave1 Outdoor Unit Fan DC Link Input Voltage is under 380V Slave2 Outdoor Unit Fan DC Link Input Voltage is under 380V Slave3 Outdoor Unit Fan DC Link Input Voltage is under 380V Liquid pipe temperature sensor of Master Outdoor Unit is open or short Liquid pipe temperature sensor of slave1 Outdoor Unit is open or short Liquid pipe temperat...

Page 89: ... is Over 95 C Slave3 Outdoor Unit Fan Inverter PCB Temperature is Over 95 C Master Outdoor Unit Subcooling Inlet Temperature Sensor Error Slave1 Outdoor Unit Subcooling Inlet Temperature Sensor Error Slave2 Outdoor Unit Subcooling Inlet Temperature Sensor Error Slave3 Outdoor Unit Subcooling Inlet Temperature Sensor Error Master Outdoor Unit Subcooling Outlet Temperature Sensor Error Slave1 Outdoo...

Page 90: ...e Out sensor of HR unit open or short Failing to receive HR unit signal at outdoor unit Master Outdoor Unit Fan PCB Heat Sink Temperature Sensor Error Slave1 Outdoor Unit Fan PCB Heat Sink Temperature Sensor Error Slave2 Outdoor Unit Fan PCB Heat Sink Temperature Sensor Error Slave3 Outdoor Unit Fan PCB Heat Sink Temperature Sensor Error Searching pipe Error HR unit1 Liqiud sensor error HR unit1 S...

Page 91: ...e of limiting 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 ISO5149 EN378 1 Outdoor unit No 1 sys...

Page 92: ...larm linked with mechanical ventilator Pay a special attention to the place such as a basement etc where refrigerant can stay since refrigerant is heavier than air Countermeasure 2 Gas leak alarm Mechanical ventilator Countermeasure 1 Opening effective to ventilation Indoor unit Outdoor unit Indoor unit Smallest room R410A Refrigerant concentration kg m3 Total amount of replenished refrigerant in ...

Page 93: ......

Search results

Summary of Contents for ARUB100LT2

Reviews:

Related manuals for ARUB100LT2

Brands by name

Popular brands

LG ARUB100LT2, Installation Manual

Search results

Summary of Contents for ARUB100LT2

Reviews:

Related manuals for ARUB100LT2

Brands by name

Popular brands