LG ARUN038GS2 Installation Manual

LG ARUN038GS2 Manual

Get LG ARUN038GS2 PDF manuals and user guides View all LG ARUN038GS2 manuals
Add to My Manuals
Save this manual to your list of manuals

LG ARUN038GS2 manual content summary:

  • LG ARUN038GS2 | Installation Manual - Page 1
    ÇAIS ESPAÑOL website http://www.lgservice.com LG System Heat Recovery Outdoor Unit R410A INSTALLATION MANUAL MODELS: ARUB Series IMPORTANT • Please read this installation manual completely before installing the product. • Installation work must be performed in accordance with the national wiring
  • LG ARUN038GS2 | Installation Manual - Page 2
    instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death. CAUTION: Improper installation, adjustment, alteration, service or metal frame to provide added support. ... in a room: Properly vents. When connecting refrigerant tubing • Keep all
  • LG ARUN038GS2 | Installation Manual - Page 3
    13 Select the Best Location ...13 Installation Space ...15 Lifting method...19 Installation ...20 Refrigerant piping installation 22 Electrical Wiring...41 HR unit PCB ...54 Main PCB ...65 Test Run...72 Caution For Refrigerant Leak 89 Installation guide at the seaside 91 Installation Manual 3
  • LG ARUN038GS2 | Installation Manual - Page 4
    Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use a special circuit. • If the For re-installation of the installed product, always contact a dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury.
  • LG ARUN038GS2 | Installation Manual - Page 5
    refrigerant from the refrigerant specified on the unit. • If a different refrigerant or air is mixed with the original refrigerant, the refrigerant outlet for this appliance. • There contact an Authorized Service Center. • refrigerant) leakage after installation or repair of product. • Low refrigerant
  • LG ARUN038GS2 | Installation Manual - Page 6
    art, etc. It is a consumer air conditioner, not a precision refrigeration system. • There is risk of damage or loss of property. or outlet. • It may cause failure of appliance or accident. Make the connections securely so that manual. • A bad connection may cause water leakage. 6 Outdoor Unit
  • LG ARUN038GS2 | Installation Manual - Page 7
    the specified positions on the unit base. Also support the outdoor unit at four points so that it operational season. Do not touch any of the refrigerant piping during and after operation. • It can may result in water leakage or other problems. Auto-addressing should be done in condition Manual 7
  • LG ARUN038GS2 | Installation Manual - Page 8
    Avoid short circuits and ensure sufficient space is allowed for service Duct work Make sure airflow is sufficient Heat insulation work . Additional charge of refrigerant Recharge correctly as calculated in this manual and record the amount of added refrigerant Automatic addressing for Indoor
  • LG ARUN038GS2 | Installation Manual - Page 9
    .88(5/8) Low Pressure Pipes[mm(inch)] 28.58(1 1/8) 28.58(1 1/8) 34.9(1 3/8) 34.9(1 3/8) High Pressure Gas Pipes[mm(inch)] 22.2(7/8) 22.2(7/8) 28.58(1 1/8) 28.58(1 1/8) Installation Manual 9
  • LG ARUN038GS2 | Installation Manual - Page 10
    Outdoor Units Information Unit Model(HP(Ton)) 26(20.5) Model Combination Unit ARUB250BT2 ARUB096BT2 Independent Unit˜ ARUB076BT2 ARUB076BT2 Product Charge kg(lbs) 8+8+8(17.6+17.6+17.6) CF(Correction Factor) kg(lbs) -2(-4.4) Max. Connectable No. of Indoor Units 42 Net Weight kg 285
  • LG ARUN038GS2 | Installation Manual - Page 11
    .7)x2 19.05(3/4) 34.9(1 3/8) 28.58(1 1/8) 8+8(17.6+17.6) 5(11.0) 49 285x2 628x2 (1,280x1,607x730)x2 (50.4x63.3x28.7)x2 19.05(3/4) 34.9(1 3/8) 28.58(1 1/8) Installation Manual 11
  • LG ARUN038GS2 | Installation Manual - Page 12
    Outdoor Units Information Unit 2 Outdoor Units 3 Outdoor Units Model(HP(Ton)) 32(25.5) 34(27.0) 36(28.5) 38(30.0) Model Combination Unit ARUB310DT2 ARUB330DT2 ARUB350DT2 ARUB370DT2 ARUB154DT2 ARUB134DT2 ARUB134DT2 ARUB154DT2 Independent Unit ARUB154DT2 ARUB115DT2 ARUB134DT2 ARUB134DT2
  • LG ARUN038GS2 | Installation Manual - Page 13
    the developed countries have approved it as the environment-friendly refrigerant and encouraged to use it widely to prevent environment pollution flows out of unit when heating • With space for air passage and service work shown next • Because of the possibility of fire, do not Installation Manual 13
  • LG ARUN038GS2 | Installation Manual - Page 14
    HR unit suitable for following conditions • Avoid a place where rain may enter since the HR unit is for indoor. • Sufficient service space must be obtained. • Refrigerant pipe must not exceed limited length. • Avoid a place subject to a strong radiation heat from other heat source. • Avoid a place
  • LG ARUN038GS2 | Installation Manual - Page 15
    space of at least 250mm(9-13/16 inch) is necessary at the back for inlet air. Taking servicing, etc. from the rear into account, a space of about 915mm(36 inches) should be provided, A B B B Front Side Rear Side A B B Front Side < Top view > Rear Side Front Side A B Installation Manual 15
  • LG ARUN038GS2 | Installation Manual - Page 16
    or more B B B 200mm(7-7/8 inch) or more C C 250mm(9-13/16 inch) or more < Front view > A B C Rear Side B B Front Side A C C < Front view > D D Air guide E Air outlet guide (Procured at the site) E F 250mm(9-13/16 inch) or more B Rear Side A Front Side Door < Side view > 16 Outdoor Unit
  • LG ARUN038GS2 | Installation Manual - Page 17
    Rear Side D Rear Side D Rear Side D Rear Side Front Side Front Side Front Side Front Side Rear Side Front Side Rear Side Front Side Installation Manual 17
  • LG ARUN038GS2 | Installation Manual - Page 18
    Installation Space Seasonal wind and cautions in winter • Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well. • Get ready for seasonal wind or snow in winter even in other areas. • Install a suction and discharge duct not to let in snow
  • LG ARUN038GS2 | Installation Manual - Page 19
    it. Otherwise plastic packaging bag may suffocate children to death. • When carrying in Outdoor Unit, be sure to support it at four points. Carrying in and lifting with 3-point support may make Outdoor Unit unstable, resulting in a fall. • Be very careful while carrying ARUN076DT2. It will be tilted
  • LG ARUN038GS2 | Installation Manual - Page 20
    Installation Installation Location of anchor bolt(To be applied to 1, 2, 3 Units installation) s Individual installation 10(3/8) 10(3/8) Unit: mm(inch) UW1 UW1 UW1 700±2(27-9/16±1/16) 900±2 383 900±2 383 900±2 (35-7/16±1/16) (15-1/16) (35-7/16±1/16) (15-1/16) (35-7/16±1/16) s
  • LG ARUN038GS2 | Installation Manual - Page 21
    H-beam support as a base support • mounted. Otherwise, the support for installation may be pad between outdoor unit and base support to ensure that anti-vibration may surface) F H-Beam support G Concrete base support WARNING • Be sure for support strength when making a base support. • Don't use
  • LG ARUN038GS2 | Installation Manual - Page 22
    : 25Nm (250kg-cm) or more). (Don't remove the internal part of the port) 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: 10 lbf•ft or more). Liquid pipe Ball Valve(Liquid Pipe) Gas
  • LG ARUN038GS2 | Installation Manual - Page 23
    outdoor unit, remove part and part . When connecting the pipes from the side of the outdoor unit, remove part (the whole "Knock out" part). Refrigerant piping installation (Front) WARNING After installing the pipe, clog the pipe excavation inlet of the front panel and the side panel (Wire may be
  • LG ARUN038GS2 | Installation Manual - Page 24
    Refrigerant piping installation Connection of Outdoor Units 2 outdoor units Model Low Pressure Gas Pipe Liquid Pipe [Unit:mm(inch)] High Pressure Gas Pipe Ø34.9(1-3/8) Ø31.8(1-1/4) ARCNB20 Ø
  • LG ARUN038GS2 | Installation Manual - Page 25
    into liquid pipe, low pressure gas pipe and high pressure gas pipe depending on status of refrigerant passing through the pipe. You must connect 3 pipes from outdoor unit to HR unit. For 3 indoor units : No. 1, 2, 3 (O), No. 1, 2, 4 (X), No.1, 3, 4 (X), No.2, 3, 4 (X). Installation Manual 25
  • LG ARUN038GS2 | Installation Manual - Page 26
    Refrigerant piping installation Type of HR Unit Select an HR unit according to the number of the indoor units to be installed. HR units are classified
  • LG ARUN038GS2 | Installation Manual - Page 27
    ENGLISH [ Reducers for indoor unit and HR unit ] Refrigerant piping installation Models Liquid pipe [Unit:mm(inch)] Gas pipe High pressure Low pressure OD22.2(7/8) Ø19.05(3/4) OD28.58(1-1/8) Ø22.2(7/8) Ø19.25(3/4) OD15.88(5/8) Ø12.7(1/2) OD19.05(3/4) Ø15.88(5/8) Installation Manual 27
  • LG ARUN038GS2 | Installation Manual - Page 28
    properly. Insufficient insulation will result in a decline in heating/cooling performance, drip of condensate and other such problems. 11. When connecting the refrigerant piping, make sure the service valves of the outdoor unit is completely closed (the factory setting) and do not operate it until
  • LG ARUN038GS2 | Installation Manual - Page 29
    site, be sure to make recharge refrigerant after perfect evacuation. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit ) Unit: mm(inch) 1,280(50-3/8) Max. 10(0.39) Distance between Outdoor Units Installation Manual 29
  • LG ARUN038GS2 | Installation Manual - Page 30
    piping installation Refrigerant piping system Example : 2 Outdoor units, 4 HR units and 10 indoor units Outdoor unit Y branch HR unit Indoor unit Slave 1 A2 Master A1 H h F2 E F1 E2
  • LG ARUN038GS2 | Installation Manual - Page 31
    ENGLISH Refrigerant piping installation ➲ Refrigerant pipe diameter between branches and HR units (B,C,D) Downward indoor unit total capacity [kW(Btu/h)] ≤ 5.6 (19,100) < 16.0 (54,600) HR unit. • Serial connection of HR units : Capacity sum of indoor units ≤ 160kBtu/hr. Installation Manual 31
  • LG ARUN038GS2 | Installation Manual - Page 32
    Prohibited pattern HR1 1 2 3 4 48k 48k 48k 48k • Capacity sum of indoor units is over 160kBtu/hr. Pattern Pattern A HR1 HR2 1 2 3 4 36k 36k 36k 36k A HR1 HR2 1234 12k 24k 24k 12k 5678 48k 48k 48k 12k 1 Indoor unit A Y Branch pipe Outdoor Unit Low pressure Gas pipe High
  • LG ARUN038GS2 | Installation Manual - Page 33
    ENGLISH x Outdoor Unit Connection ➲ Refrigerant pipe diameter before 1st branch (A,E,F) Upward outdoor unit total capacity [HP] 8 10 12 14, 16 18, 20 22, 35(1/4) < 16.0(54,600) Ø9.52(3/8) < 22.4(76,400) Ø9.52(3/8) Gas pipe [mm(inch)] Ø12.7(1/2) Ø15.88(5/8) Ø19.05(3/4) Installation Manual 33
  • LG ARUN038GS2 | Installation Manual - Page 34
    units x 1.1 lbs + CF(kg(lbs)) (Correction factor) Total amount(kg(lbs)) = A + B CAUTION If a negative result is obtained from the calculation, no refrigerant needs to be added. Ex) 10HP Outdoor unit HR unit (1EA) Indoor unit A: Ø12.7(1/2), 50m(164ft) B: Ø9.52(3/8), 10m(33ft) C: Ø9.52(3/8), 10m
  • LG ARUN038GS2 | Installation Manual - Page 35
    opening part 2. Reconfirmation of outdoor unit capacity and piping length 3. Reduction of the amount of refrigerant 4. Installation of 2 or more security device (alarm for gas leakage) - Change indoor unit the CF value of correction factor differs depending on model. Installation Manual 35
  • LG ARUN038GS2 | Installation Manual - Page 36
    from point A in direction of arrow Within ± 3° Within ± 3° • 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
  • LG ARUN038GS2 | Installation Manual - Page 37
    ENGLISH x Y branch pipe Refrigerant piping installation Models Low Pressure Gas Pipe Liquid pipe [Unit:mm(inch)] High Pressure Gas Pipe I.D9.52(3/8) I.D19.05(3/4) I.D28.58(1-1/8) I.D25.4(1) O.D28.58(1-1/8) O.D19.05(3/4) I.D9.52(3/8) I.D22.2(7/8) I.D12.7(1/2) Installation Manual 37
  • LG ARUN038GS2 | Installation Manual - Page 38
    reduced after leaving for about one day after completion of nitrogen gas pressurization. * When charging of refrigerant is needed due to a defect of outdoor unit, pressurize after opening the service valves. During this test, please using the Vacuum Mode. High pressure gas pipe Liquid pipe Note
  • LG ARUN038GS2 | Installation Manual - Page 39
    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 problems • Repeated on and off of the indoor units
  • LG ARUN038GS2 | Installation Manual - Page 40
    piping 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
  • LG ARUN038GS2 | Installation Manual - Page 41
    work using special circuits in accordance with regulations and this installation manual. If power supply circuit has a lack of capacity or 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 communication
  • LG ARUN038GS2 | Installation Manual - Page 42
    Electrical Wiring Outdoor Unit Outdoor Unit Indoor Unit Indoor Unit Remote controller Remote controller Outdoor Unit Indoor Unit Indoor Unit Remote controller Remote controller 2-Core Shield Cable Indoor Unit Indoor Unit Remote controller Remote controller Outdoor Unit Indoor Unit
  • LG ARUN038GS2 | Installation Manual - Page 43
    : Inverter ARUB096DT2 FAN PCB ARUB115DT2 ARUB134DT2 ARUB154DT2 Noise Filter Main PCB Magnet switch Take care of the phase sequence of 3-phase 3-wire power system Installation Manual 43
  • LG ARUN038GS2 | Installation Manual - Page 44
    Electrical Wiring Communication and Power Lines 1) Communication cable • Types : shielding wire CVVS or CPEVS • Cross section : over 1.25mm2 • Insulation material : PVC • Maximum allowable temperature: 140°F • Maximum allowable line length: under 1,000m(3,280ft) 2) Remote control cable • Types : 3-
  • LG ARUN038GS2 | Installation Manual - Page 45
    requirements should adhere to the wiring regulations of the region. 5. Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed flexible cord. 6. Don't install an too large capacity may cause a malfunction of unit or fire. Installation Manual 45
  • LG ARUN038GS2 | Installation Manual - Page 46
    Use round pressure terminals for connections to the power terminal block. Round pressure terminal Power wire When none are available, follow the instructions below. • Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat
  • LG ARUN038GS2 | Installation Manual - Page 47
    INTERNET DRY1 DRY2 GND 12V BA BA Master Outdoor unit HR unit 3(A) 4(B) 3(A) 4(B) 3(A) 4(B) The GND terminal is a '-' terminal for the central controller, not ground line Installation Manual 47
  • LG ARUN038GS2 | Installation Manual - Page 48
    Electrical Wiring x Example Connection of Communication Cable 2 Outdoor Units s When the power source is supplied to Each outdoor unit individually. 3 Phase 3 Wires Power supply 60Hz 208/230V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply 1 Phase 60Hz 208/230V Power supply
  • LG ARUN038GS2 | Installation Manual - Page 49
    3(A) 4(B) 3(A) 4(B) SODU IDU INTERNET DRY1 DRY2 GND 12V Slave BA BA Outdoor unit The GND terminal is a '-' terminal for the central controller, not ground line Installation Manual 49
  • LG ARUN038GS2 | Installation Manual - Page 50
    Electrical Wiring x Example Connection of Communication Cable s 1 Outdoor Unit - 3Ø, 460V 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch fuse) Power supply 1 Phase 60Hz 208/230V HR unit 3 Phase 3 Wires Power line(R, S,
  • LG ARUN038GS2 | Installation Manual - Page 51
    3(A) 4(B) 3(A) 4(B) SODU IDU INTERNET DRY1 DRY2 GND 12V Slave BA BA Outdoor unit The GND terminal is a '-' terminal for the central controller, not ground line Installation Manual 51
  • LG ARUN038GS2 | Installation Manual - Page 52
    Electrical Wiring x Example Connection of Communication Cable 3 Outdoor Units s When the power source is supplied to Each outdoor unit individually. 3 Phase 3 Wires Power supply 60Hz 460V (Main Switch) Power supply switch (Switch fuse : ELCB) Power supply switch (Switch fuse) Power supply 1
  • LG ARUN038GS2 | Installation Manual - Page 53
    by communication defect, when connection of communication cable is installed like below figure(STAR type). HR unit HR unit HR unit HR unit ENGLISH Installation Manual 53
  • LG ARUN038GS2 | Installation Manual - Page 54
    SW02M (Dip switch for setup of the function of HR unit) SW03M SW04M SW05M (Switch for addressing HR unit) SW01M SW01M/SW03M/SW04M (Switch for manual valve addressing) Switch for setup of HR Unit 1. Main function of SW02M SW02M ON S/W No.1 No.2 No.3 No.4 No.5 No.6 No.7 No.8 Selection Method for
  • LG ARUN038GS2 | Installation Manual - Page 55
    and 4th pipes, set the dip switch for 2 rooms HR unit. • The unused port must be closed with a copper cap, not with a plastic cap. Installation Manual 55
  • LG ARUN038GS2 | Installation Manual - Page 56
    HR Unit PCB 3) Setting the Valve Group. DIP S/W setting Not control No.1, 2 Valve Control Example 43 Indoor Unit Indoor Unit 2 1 Indoor Unit Indoor Unit 43 2 1 Indoor Unit Indoor Unit Large capacity indoor unit No.2, 3 Valve Control 43 21 Indoor Unit Large capacity indoor unit Indoor
  • LG ARUN038GS2 | Installation Manual - Page 57
    increasing numbers starting from '0'. Ex) Installation of 3 HR units 34 1234 34 1234 34 1234 3. SW01M/SW03M/SW04M (Dip S/W and tact S/W for manual valve addressing) - Used in manual addressing of the valve in the HR unit - Set the address of the valve of the HR unit to the central control
  • LG ARUN038GS2 | Installation Manual - Page 58
    HR Unit PCB Flow chart for auto addressing for indoor units and HR units 1) Auto addressing for indoor unit 2) Auto pipe detection 3) Manual pipe detection(Execute in case of Auto pipe detection failure) • Turn off all the indoor units before auto addressing. If indoor unit is operated, auto
  • LG ARUN038GS2 | Installation Manual - Page 59
    Ex) HR ➠ The number of the indoor • Turn No.6 of SW03M of outdoor unit PCB off. • Reset the power of outdoor unit PCB, HR unit. • Manual pipe detection is completed WARNING • In case that central controller is not installed, remain the address data after installer sets central control address as he
  • LG ARUN038GS2 | Installation Manual - Page 60
    one equal? Yes Completion of auto addressing Check power and communication wiring between outdoor, HR and indoor units Retry indoor unit auto-addressing after checking trouble Incompletion of auto addressing 60 Outdoor Unit
  • LG ARUN038GS2 | Installation Manual - Page 61
    operation. NO Pipe detection error occur after 30 seconds. Check the installation of pipe of outdoor, indoor, HR unit Retry auto pipe detection after checking trouble Incompletion of auto pipe detection Installation Manual 61
  • LG ARUN038GS2 | Installation Manual - Page 62
    )HR ➠ The number of the indoor Enter the central control address into each indoor unit using its wired remote control. On the HR unit PCB, manually set address of each valve of the HR unit to the central control address of the indoor unit connected to the valve. Are the number
  • LG ARUN038GS2 | Installation Manual - Page 63
    valve addressing (In case that an indoor unit of central control address "11" is connected to a valve #1 of an HR unit) • Prerequisite for manual valve addressing: central control address of each indoor unit must be preset differently at its wired remote control No. Display and setup Setup and
  • LG ARUN038GS2 | Installation Manual - Page 64
    on. SW01M SW03M • Display: "11" is displayed in 7-SEG • Operation: Turn dip S/W No.1 on. 2 • 7-SEG disappeared SW01M SW03M Identification of Manual Valve ID (Address) No. Display and Setup Setup and Contents 1 • Operation: more than 2 dip switches turned on. SW01M SW03M • Display: "Er
  • LG ARUN038GS2 | Installation Manual - Page 65
    Main PCB Main PCB SW01B SW02B (DIP S/W) (DIP S/W) 7 - Segment SW02V Auto addressing ENGLISH Installation Manual 65
  • LG ARUN038GS2 | Installation Manual - Page 66
    Main PCB DIP switch setting s Checking according to dip switch setting 1. You can check the setting values of the Master outdoor unit from the 7 segment LED. The dip switch setting should be changed when the power is OFF. 2. It checks whether the input is properly performed without the bad contact
  • LG ARUN038GS2 | Installation Manual - Page 67
    1234 5 67 1234 5 67 ON 1234 5 67 8 9 10 11 12 13 14 ON 1234 5 67 1234 5 67 1234 5 67 8 9 10 11 12 13 14 Installation Manual 67
  • LG ARUN038GS2 | Installation Manual - Page 68
    Main PCB Function SW01B Setting ON SW02B Setting ON Snow Forced Defrosting Snow + Forced Defrosting Outdoor Unit Fan Low Static Pressure Compensation Outdoor Unit Fan High Static Pressure Compensation Night silent operation 1234 5 67 1234 5 67 ON 1234 5 67 8 9 10 11 12 13 14 ON 1234 5 67 1234
  • LG ARUN038GS2 | Installation Manual - Page 69
    ON 1234 5 67 8 9 10 11 12 13 14 ON 1234 5 67 1234 5 67 1234 5 67 8 9 10 11 12 13 14 Main PCB Remarks Remarks Installation Manual 69
  • LG ARUN038GS2 | Installation Manual - Page 70
    Main PCB Group Number setting Group Number setting for Indoor Units Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off. The communication lines connected to INTERNET terminal should be connected to central control of Outdoor unti with care for their polarity( A ¡
  • LG ARUN038GS2 | Installation Manual - Page 71
    Main PCB WARNING • Valve address and central control address of its corresponding indoor unit should be set identical in manual addressing. EX) HR unit Valve (04) Valve (03) Valve (02) Valve (01) Indoor unit (04) Indoor unit (03) Indoor unit (02) Indoor unit (01) Central
  • LG ARUN038GS2 | Installation Manual - Page 72
    the ground may decrease to approx. 2 MΩ as a result of refrigerant accumulating in the internal compressor. If the insulation resistance is less opened NOTE: Be sure to tighten caps. 4 Check if there are any problems in automatic addressing or not: Check and confirm that there are no error messages
  • LG ARUN038GS2 | Installation Manual - Page 73
    exchanger part Service necessary Low pressure error EEV clogged or discharge temperature error Service necessary When system fault occurs, the error code is displayed at indoor unit display or remote control display, the trouble shooting guide is in the service manual Installation Manual 73
  • LG ARUN038GS2 | Installation Manual - Page 74
    Sensor Checking No Yes Note 3) Main PCB SW01V Press the black button for 2 sec. on main PCB. Refrigerant Auto Charging Press the black button until '508' is displayed Refrigerant Checking Press the black button until '608' is displayed. Indoor/Outdoor units operate with air circulation mode
  • LG ARUN038GS2 | Installation Manual - Page 75
    displayed continuously and repeatedly. In case 5 error occurs, again perform sensor checking after solving errors. 2. IDU in which error occurred operates air circulation mode. Installation Manual 75
  • LG ARUN038GS2 | Installation Manual - Page 76
    Isn't certain because of SVC and leakage. Start Main PCB SW01S Wait for 3 min. after power reset Main PCB SW01B Set the Dip S/W. Refrigerant Auto Changing : 1,2,7 ON SW02B Main PCB Press the black button on main PCB. SW01V ( Press until '508' is displayed ) Note 1. After installing the
  • LG ARUN038GS2 | Installation Manual - Page 77
    refrigerant vessel and scale 2. Connect manifold to the gas pipe service charge the refrigerant s Error contents about auto refrigerant charging Judging rapid refrigerant inflow ( In case the liquid refrigerant flows ~ 43°C (77°F) 2. For refrigerant charging, use designated device only. (Capillary
  • LG ARUN038GS2 | Installation Manual - Page 78
    charging function. Start Main PCB SW01S Main PCB SW01B SW02B Main PCB SW01V Main PCB SW01V Wait for 3 min. after power reset Set the Dip S/W. Refrigerant Checking : 1,2,7,14 ON Press the black button on main PCB. ( Press until '608' is displayed ) Press the black button on main PCB Note 1. In
  • LG ARUN038GS2 | Installation Manual - Page 79
    , 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. Installation Manual 79
  • LG ARUN038GS2 | Installation Manual - Page 80
    Test Run Night silent operation Function In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low cooling load. Max. RPM setting method Dip S/W No.12+14 ON Master ODU SW01B Note 1) Main PCB Power Reset Setting the Fan Max. RPM
  • LG ARUN038GS2 | Installation Manual - Page 81
    cancellation Vacuum mode setting ODU V/V OPEN Main EEV, SC EEV OPEN IDU EEV OPEN CAUTION ODU operation stops during vacuum mode. Compressor can't operate. Installation Manual 81
  • LG ARUN038GS2 | Installation Manual - Page 82
    indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table. • If more than two troubles occur simultaneously, lower number of error code is first displayed. • After error occurrence, if error is released, error LED is also released simultaneously
  • LG ARUN038GS2 | Installation Manual - Page 83
    of Slave1 Outdoor Unit Low Pressure of Slave2 Outdoor Unit 3 System is turned off by excessive decrease of low pressure of Slave2 Outdoor Unit Installation Manual 83
  • LG ARUN038GS2 | Installation Manual - Page 84
    Test Run Outdoor unit related error Display Title Cause of Error Master Outdoor Unit Inverter Compressor 1 CT Sensor Fault Master Outdoor Unit Inverter Compressor CT Sensor open or short 4 0 Slave1 Outdoor Unit Inverter Compressor 2 CT Sensor Fault Slave1 Outdoor Unit Inverter Compressor
  • LG ARUN038GS2 | Installation Manual - Page 85
    PFC CT Sensor open or short Slave1 Outdoor Unit PFC CT Sensor open or short Slave2 Outdoor Unit PFC CT Sensor open or short Installation Manual 85
  • LG ARUN038GS2 | Installation Manual - Page 86
    Test Run Outdoor unit related error Display Title Cause of Error 1 Instant Over Current(Peak) of Master Outdoor Unit PFC Instant Over Current(Peak) of Master Outdoor Unit PFC 7 3 2 Instant Over Current(Peak) of Slave1 Outdoor Unit PFC Instant Over Current(Peak) of Slave1 Outdoor Unit PFC
  • LG ARUN038GS2 | Installation Manual - Page 87
    Outdoor Unit Comp locking, Check Valve leakage, comp dielectric at Slave1 Outdoor Unit Comp locking, Check Valve leakage, comp dielectric at Slave2 Outdoor Unit Installation Manual 87
  • LG ARUN038GS2 | Installation Manual - Page 88
    Test Run Outdoor unit related error Display Title Cause of Error 1 Excessive increase of Master Outdoor Unit Fan PCB Heat Sink Temperature Master Outdoor Unit Fan Inverter PCB Temperature is Over 95°C 1 9 3 2 Excessive increase of Slave1 Outdoor Unit Fan PCB Heat Sink Temperature Slave1
  • LG ARUN038GS2 | Installation Manual - Page 89
    the limit of Freon gas concentration where immediate measures can be taken without hurting human body when refrigerant leaks in the air. The limiting concentration shall be described in the unit of lb/ft3 ( 15 % or more openings (to floor space) both above and below door) Installation Manual 89
  • LG ARUN038GS2 | Installation Manual - Page 90
    door, or provide opening without door. • Countermeasure 2 Provide gas leak alarm linked with mechanical ventilator. Reducing the outdoor refrigerant qty. Countermeasure 2 Gas leak alarm Mechanical ventilator Indoor unit Countermeasure 1 Opening effective to ventilation Pay a special attention to
  • LG ARUN038GS2 | Installation Manual - Page 91
    at the seaside Installation guide at the seaside CAUTION 1. Air conditioners should not be for easy air flow. 3) Select a well-drained place. 1. If you can't meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic
  • LG ARUN038GS2 | Installation Manual - Page 92
    92 Outdoor Unit
  • LG ARUN038GS2 | Installation Manual - Page 93
    P/No.: MFL46912304 Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
System
Heat Recovery Outdoor Unit
INSTALLATION MANUAL
LG
MODELS: ARUB Series
IMPORTANT
• Please read this installation manual completely before
installing the product.
• Installation work must be performed in accordance with
the national wiring standards by authorized personnel
only.
• Please retain this installation manual for future reference
after reading it thoroughly.
R410A
ENGLISH
FRANÇAIS
ESPAÑOL