ENGLISH FRANCAIS ESPAÑOL PORTUGUESE INSTALLATION MANUAL AIR CONDITIONER • 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.your set and retain it for future reference. MODELS ARUB Series(Heat recovery) www.lg.
IMPORTANT! Please read this instruction sheet completely before installing the product. This air conditioning system meets strict safety and operating standards. As the installer or service person,it is an important part of your job to install or service the system so it operates safely and efficiently. WARNING • Installation or repairs made by unqualified persons can result in hazards to you and others.
ARUB Series Outdoor unit Installation Manual Safety Precautions ................................................................................................................4 Installation Process ..............................................................................................................8 Outdoor units Information ....................................................................................................9 Environment-friendly Alternative Refrigerant R410A .....................
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. ■ Meanings of symbols used in this manual are as shown below.
Safety Precautions • If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. Ventilate before operating air conditioner when gas leaked out. • It may cause explosion, fire, and burn. Do not reconstruct to change the settings of the protection devices.
Safety Precautions ■ Installation Always check for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of product. Keep level even when installing the product. • To avoid vibration or water leakage. Use power cables of sufficient current carrying capacity and rating. • Cables that are too small may leak, generate heat, and cause a fire. Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.
Safety Precautions Be very careful about product transportation. 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. Do not touch any of the refrigerant piping during and after operation. • It can cause a burn or frostbite.
Installation Process Installation Process Determination of division work Preparation of contract drawings Sleeve and insert work Installation of indoor unit Indicate clearly who will be responsible for switch setting. Make connection clearly between outdoor, indoor, remote controller and option.
Outdoor units Information ENGLISH Outdoor units Information ■ Combination Ratio(50~130%) Outdoor Number Single outdoor units Double outdoor units Triple outdoor units Connection Capacity 130% 130% 130% Notes: * We can guarantee the operation only within 130% Combination. Power Supply: Outdoor Unit (3Ø, 208/230V, 60Hz) ■ Heat Recovery Unit System HP Ton 8 6 ARUB072BT3 1 Outdoor Unit 10 8 ARUB096BT3 12 10 ARUB121BT3 5.5 12.1 13 (190 × 1) (418 × 1) (920×1,680×760)×1 (36.2×66.1×29.9)×1 9.52(3/8) 19.
Outdoor units Information Unit System HP Ton Model kg lbs Max. Connectable No. of Indoor Units kg Net Weight lbs Product Charge Dimensions (WxHxD) Connecting Pipes mm inch Liquid Pipes[mm(inch)] Low Pressure Gas [mm(inch)] High Pressure Gas [mm(inch)] Unit System HP Ton Model kg lbs Max. Connectable No.
Outdoor units Information ENGLISH Power Supply: Outdoor Unit (3Ø, 460V, 60Hz) ■ Heat Recovery Unit System HP Ton Model kg lbs Max. Connectable No. of Indoor Units kg Net Weight lbs Dimensions mm inch (WxHxD) Liquid Pipes[mm(inch)] Connecting Low Pressure Gas [mm(inch)] Pipes Product Charge High Pressure Gas [mm(inch)] Unit System HP Ton Model kg lbs Max. Connectable No.
Outdoor units Information Unit System HP Ton Model kg lbs Max. Connectable No. of Indoor Units kg Net Weight lbs Product Charge Dimensions (WxHxD) Connecting Pipes mm inch Liquid Pipes[mm(inch)] Low Pressure Gas [mm(inch)] High Pressure Gas [mm(inch)] 2 Outdoor Unit 28 24 ARUB288DT3 ARUB144DT3 ARUB144DT3 19 41 45 (280 × 2) (617 × 2) (1,240×1,680×760)×2 (48.8×66.1×29.9)×2 19.05(3/4) 34.9(1-3/8) 28.58(1-1/8) Unit System HP Ton Model kg lbs Max. Connectable No.
Environment-friendly Alternative Refrigerant R410A • The refrigerant R410A has the property of higher operating pressure in comparison with R22. Therefore, all materials have the characteristics of higher resisting pressure than R22 ones and this characteristic should be also considered during the installation. R410A is an azeotrope of R32 and R125 mixed at 50:50, so the ozone depletion potential (ODP) of R410A is 0.
Select the Best Location ■ Select installation location of the 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 where oil spattering, vapor spray or high frequency electric noise is expected.
Installation Space Individual Installation ■ During the installation of the unit, consider service, inlet, and outlet and acquire the minimum space as shown in the figures below.
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 or rain. • Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction.
Lifting method • When carrying the suspended, unit pass the ropes under the unit and use the two suspension points each at the front and rear. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. • Attach the ropes to the unit at an angle of 40° or less.
Installation Installation • Install at places where it can endure the weight and vibration/noise of the outdoor unit. • The outdoor unit supports at the bottom shall have width of at least 100mm(3-15/16 inch) under the units legs before being fixed. • The outdoor unit supports should have minimum height of 200mm(7-7/8 inch). • Anchor bolts must be inserted at least 75mm(2-15/16 inch). At The outdoor unit should not be supported only by the corner supports.
Installation • Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust. • Use the H-beam support as a base support • Noise and vibration may occur from the floor or wall since vibration is transferred through the installation part depending on installation status. Thus, use anti-vibration materials (cushion pad) fully (The base pad shall be more than 200mm(7-7/8 inch).
Installation Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. 1) Cut the pipes and the cable. ■ Use the accessory piping kit or the pipes purchased locally. ■ Measure the distance between the indoor and the outdoor unit. ■ Cut the pipes a little longer than measured distance. Copper tube 90 Slanted Uneven Rough Pipe 2) Burrs removal ■ Completely remove all burrs from the cut cross section of pipe/tube.
Installation FLARE SHAPE and FLARE NUT TIGHTENING TORQUE pipe size tightening torque [N·m(lbf·ft)] A[mm(inch)] Ø9.52(3/8) 32.7(24.19)~39.9(29.45) 12.8(1/2)~13.2(17/32) Ø12.7(1/2) 49.5(36.51)~60.3(44.47) 16.2(5/8)~16.6(21/32) Ø15.88(5/8) 61.8(45.58)~75.4(55.61) 19.3(3/4)~19.7(25/32) flare shape 90 2 45 2 A R=0.4~0.8 CAUTION • Always use a charge hose for service port connection. • After tightening the cap, check that no refrigerant leaks are present.
Installation HEAT INSULATION 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C(248°F)). 2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "ISO Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C(73°F)), water drops are liable to Indoor unit fall.
Refrigerant piping Installation Precautions on Pipe connection / Valve operation Pipe connection is done by connecting from the end of the pipe to the branching pipes, and the refrigerant pipe coming out of the outdoor unit is divided at the end to connect to each indoor unit. Flare connection for the indoor unit, and welding connection for the outdoor pipe and the branching parts. Low Pressure Gas pipe Liquid pipe • Use hexagonal wrench to open/close the valve.
Refrigerant piping Installation Connection of Outdoor units (Unit : mm(inch)) Outdoor units Model Low Pressure Gas Pipe I.D.28.58(1-1/8) Liquid Pipe High Pressure Gas Pipe I.D31.8(1-1/4) I.D28.58(1-1/8) I.D25.4(1) I.D34.9(1-3/8) I.D31.8(1-1/4) 331(13-1/32) 314(12-3/8) I.D.15.88(5/8) I.D.15.88(5/8) 416(16-3/8) 408(16-1/16) I.D.28.58(1-1/8) I.D31.8(1-1/4) 111 I.D25.4(1) (4-3/8) I.D28.58(1-1/8) I.D28.58(1-1/8) I.D.31.8(1-1/4) C 2 Unit C I.D.22.2(7/8) I.D.34.9(1-3/8) 111(4-3/8) I.D.12.
Refrigerant piping Installation ENGLISH Installation procedure for HR unit 1. Using an insert-hole-in- anchor, hang the hanging bolt. 2. Install a hexagon nut and a flat washer (locally-procured)to the hanging bolt as shown in the figure in the bottom, and fit the main unit to hang on the hanger metal. Six-sided Nut (M10 or M8) 3. After checking with a level that the unit is level, tighten the hexagon nut. * The tilt of the unit should be within ±5° in front/back and left/right. Hanger metal 4.
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 into 3 types by the number of connectable indoor units. Ex) Installation of 6 indoor units Consists of HR unit for 4 branches and HR unit for 2 branches.
Refrigerant piping Installation ENGLISH Installation of Zoning Control Some indoor unit can be connected to one port of HR unit. HR unit Zoning control group 1 HR unit sealing Zoning control group 2 (Max. 8 Indoor Units) Changeover under control (Max. 8 Indoor Units) Auto changeover Changeover under control WARNING • A branch pipe of HR unit allows up to 14.5kW(48kBtu/h) based on cooling capacity of the indoor unit. (up to 14.
Refrigerant piping Installation [ Reducers for indoor unit and HR unit ] (Unit : mm(inch)) Gas pipe Models Liquid pipe Indoor unit reducer OD9.52(3/8) High pressure Ø6.35(1/4) OD15.88(5/8) OD19.05(3/4) Ø15.88(5/8) Ø12.7(1/2) PRHR021A Low pressure Ø12.7(1/2) OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8) OD9.52(3/8) Ø6.35(1/4) OD12.7(1/2) Ø9.52(3/8) OD15.88(5/8) Ø12.7(1/2) HR unit reducer OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8) PRHR031A/ PRHR041A OD28.58(1-1/8) Ø22.2(7/8) Ø19.05(3/4) OD15.
Pipe connections between indoor and outdoor unit Regulator Refrigerant Pipe Right Side Pipe Draw Out Nitrogen Direction Taping Valve Nitrogen Left Side Pipe Draw Out Front Side Pipe Draw Out Preparation Work • Use Knock Outs of Base Pan of the outdoor unit for Left/Right or Bottom pipe drawing outs. CAUTION • Do not give damage to the pipe/base during the Knock Out work. • Proceed to pipe work after removing burr after Knock Out work.
Pipe connections between indoor and outdoor unit Service Port ■ Remove leakage prevention cap • Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work. • Proceed the leakage prevention cap removal as follows: Liquid pipe 1. Verify whether the Liquid/Low Pressure/High Pressure Gas pipes are locked. Pressure 2. Extract remaining refrigerant or air inside using the ser- Low Gas pipe vice port. High Pressure 3.
Pipe connections between indoor and outdoor unit ■ Method of drawing out pipes on the bottom side ENGLISH ① Drawing out common pipe through side panel High Pressure Gas pipe Liquid pipe Low Pressure Gas pipes View without base pan Remove only liquid/gas pipe Knock Out ② Drawing out common pipe through bottom pipe High Pressure Gas pipe Liquid pipe Low Pressure Gas pipes View without base pan ■ Figure of Sides when drawing out through bottom pipe Remove Pipe Knock Out Hole i) Single/Series outdoor
Refrigerant piping system Refrigerant piping system Refrigerant Pipe Connection 3 Outdoor Units Example : 12 Indoor Units connected Ⓐ : Outdoor Unit Ⓑ : Y branch Ⓓ : Indoor Unit Ⓔ : Connection branch pipe between Outdoor units : ARCNB31 Ⓕ : Connection branch pipe between Outdoor units : ARCNB21 Ⓖ : Header Ⓗ : HR Unit Slave 2 A3 Slave 1 Master A2 A1 F3 ODU Capacity Master ≥ Slave1 ≥ Slave 2 F2 E2 E F1 E1 1 A B1 D a 2 D b B C1 H1 * c H 3 B2 D "a" d C3 H3 C2 h 4 g H2 D D "b" i
Refrigerant piping system ENGLISH WARNING * : Serial connection of HR units : Capacity sum of indoor units ≤ 192.4 kBtu/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.
Refrigerant piping system (**) Conditional Application(Incase of D12 is the farthest indoor) Below condition must be satisfied for 40m(131ft) ~ 90m(295ft) piping length after first branch. 1) Diameter of pipes between first branch and the last branch should be increased by one step, except if the pipe diameter B,C3 is same as Diameter A(Main pipe diameter) Ø6.35(1/4) → Ø 9.52(3/8) → Ø 12.7(1/2) → Ø 15.88(5/8) → Ø 19.05(3/4) → Ø 22.2(7/8) → Ø 25.4*(1), Ø 28.58(1-1/8) → Ø 31.8*(1-1/4), Ø 34.9(1-3/8) → Ø 38.
Refrigerant piping system ➲ Y branch, Header and HR unit connection pattern ENGLISH Pattern 1 Pattern 2 HR1 B A B HR1 HR2 1 2 3 4 48k 48k 48k 48k • Impossible installation : Head branch pipe HR unit Pattern 3 1 2 3 4 5 6 7 7k 7k 7k 7k 7k 24k 24k • Impossible installation : HR unit Head branch pipe Y and Head branch pipe. Pattern 4 HR1 HR1 B 1 2 3 4 1 2 3 4 48k 48k 48k 48k 12k 12k 12k 12k • The maximum total capacity of indoor units is 58kW(192 kBtu/h).
Refrigerant piping system Pattern 7 * HR2 A HR3 HR1 1 2 48k 48k 3 4 5 6 48k 48k 48k 48k • * : Serial connection of HR units : Capacity sum of indoor units ≤ 192 kBtu/h Pattern 8 * HR2 A A HR1 B 1 2 48k 48k 3 4 5 6 7 8 12k 12k 12k 12k 24k 24k • * : Maximum indoor units per a branch are 8 indoor units 1 Indoor Unit Outdoor Unit Low pressure Gas pipe High pressure Gas pipe Liquid pipe A B Y Branch pipe Gas pipe HR1 Liquid pipe Indoor Unit • Pipe installation from o
Refrigerant piping system 1) Keep the 40m distance from the first branch to the farthest indoor. ENGLISH 1) under 40m(131ft) 5m(16ft) Y branch Indoor Unit Indoor Unit Indoor Unit 15m(49ft) Indoor Unit Keep the sum of indoor capacity under 58kW(192 kBtu/h). 1) under 40m(131ft) Indoor Indoor Indoor Indoor Unit Unit Unit Unit Indoor Indoor Indoor Indoor Unit Unit Unit Unit Keep the sum of indoor capacity under 58kW(192 kBtu/h).
Refrigerant piping system ◆ Outdoor unit Connection WARNING • In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A, B should be of the same size with A. Ex) In case indoor unit combination ratio 120% is connected to 70kW outdoor unit. 1) Outdoor unit main pipe diameter A : Ø34.9(1-3/8, gas pipe), Ø15.88(5/8, liquid pipe), Ø28.58(1-1/8, High Pressure) 2) Pipe diameter B after first branch according to 120% indoor unit combination(84kW) : Ø34.
Refrigerant piping system ◆ Pipe Connection Method/Precautions for Series connections between Outdoor units ■ Pipe connection between outdoor units (General Case) The maximum pipe length after the first branching between the outdoor units is 10m(33ft) or less ■ Pipes between outdoor units are 2m(6.6ft) or less 2m(6.6ft) or less ■ Pipes between outdoor units are 2m(6.6ft) or longer Oil Trap 0.2m(0.66ft) or more 2m(6.6ft) or less 2m(6.6ft) or longer Oil Trap 2m(6.6ft) or less 2m(6.
Refrigerant piping system • The pipes between the outdoor units must maintain horizontal levelness or give an inclination to prevent a back flow toward the slave outdoor unit. Otherwise, the unit may not operate properly.
Refrigerant piping system (Example 1) Toward indoor unit Toward indoor unit (Example 2) h Toward indoor unit (Example 3) Oil Trap h ≥ 0.2m(0.66ft) h Toward indoor unit Toward indoor unit * The level difference between two outdoor units, h is allowed up to 5m(16.4ft). Installation Manual 41 ENGLISH • When connecting the pipes between the outdoor units, the accumulation of oil in the slave outdoor unit should be avoided. Otherwise, the unit may not operate properly.
Refrigerant piping system ◆ The amount of Refrigerant The calculation of the additional charge should take into account the length of pipe and CF(correction Factor) value of indoor unit. Additional charge(lbs) = Total liquid pipe :Ø25.4mm(1inch) 0.323(lbs/ft) + Total liquid pipe :Ø22.2mm(7/8inch) 0.238(lbs/ft) + Total liquid pipe :Ø19.05mm(3/4inch) 0.179(lbs/ft) + Total liquid pipe :Ø15.88mm(5/8inch) 0.116 (lbs/ft) + Total liquid pipe :Ø12.7mm(1/2inch) 0.
Refrigerant piping system Total amount of refrigerant in the system Volume of the room at which Indoor Unit of the least capacity is installed ≤ 0.44 ( kg / m3 ) (0.028(lbs/ft3)) ❐ If the above equation can not be satisfied, then follow the following steps. - Selection of air conditioning system: select one of the next 1. Installation of effective opening part 2. Reconfirmation of Outdoor Unit capacity and piping length 3. Reduction of the amount of refrigerant 4.
Refrigerant piping system Refrigerant pipe fitting ◆ Caution 1. Use the following materials for refrigerant piping. • Material: Seamless phosphorous deoxidized copper pipe • Wall thickness : Comply with the relevant local and national regulations for the designed pressure 3.8MPa(551psi). We recommend the following table as the minimum wall thickness. Outer diameter [mm(inch)] 6.35 (1/4) Minimum thickness 0.8 (0.0315) [mm(inch)] 9.52 (3/8) 12.7 (1/2) 15.88 (5/8) 19.05 (3/4) 22.2 (7/8) 25.4 (1) 28.
Refrigerant piping system - 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.
Refrigerant piping system Y Branch and Header Fitting Y branch A To Outdoor Unit B B To Branch Piping or Indoor Unit A • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Facing downwards Horizontal plane Facing upwards Within +/- 10 A Viewed from point A in direction of arrow Within 3 Within 3 • There is no limitation on the joint mounting configuration.
Refrigerant piping system B Piched pipe • Fit branch pipe lie in a horizontal plane. Horizontal plane View from point B in the direction of the arrow • Header should be insulated with the insulator in each kit. Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure. • Joints between branch and pipe should be sealed with the tape included in each kit.
Refrigerant piping system ■ Thermal Insulation of Refrigerant 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 Indoor Unit and insulating material, and insulating materials themselves. When insulation work is insufficient, there is a possibility of condensation drip, etc. Pay special attention to insulation work of ceiling plenum.
Refrigerant piping system ◆ Y Branch [Unit:mm(inch)] Models Low Pressure Gas Pipe I.D12.7(1/2) I.D12.7(1/2) I.D15.88(5/8) I.D15.88(5/8) 1 Liquid pipe I.D9.52(3/8) I.D6.35(1/4) High Pressure Gas Pipe I.D6.35(1/4) I.D9.52(3/8) I.D9.52(3/8) I.D12.7(1/2) I.D15.88(5/8) I.D9.52(3/8) I.D12.7(1/2) 1 I.D15.88(5/8) I.D12.7(1/2) ARBLB01621 I.D6.35(1/4) 74 (2-29/32) I.D9.52(3/8) 281(11-1/16) 292(11-1/2) I.D19.05(3/4) I.D15.88(5/8) I.D12.7(1/2) I.D15.88(5/8) I.D9.52(3/8) 1 O.D15.88(5/8) O.D9.
Refrigerant piping system ◆ Header branch pipe Models [Unit:mm(inch)] Gas pipe Liquid pipe 360(14-5/32) 360(14-5/32) 120(4-23/32) 120(4-23/32) ID12.7(1/2) 4 branch ID6.35(1/4) ID12.7(1/2) ID15.88(5/8) ARBL054 ID9.52(3/8) 150 120 (5-29/32) (4-23/32) ID15.88(5/8) ID6.35(1/4) ID12.7(1/2) ID15.88(5/8) ID19.05(3/4) 150 120 (5-29/32) (4-23/32) ID9.52(3/8) ID9.52(3/8) 540(21-1/4) 540(21-1/4) 120(4-23/32) 120(4-23/32) ID6.35(1/4) ID12.7(1/2) 7 branch ARBL057 ID12.7(1/2) ID15.
Refrigerant piping system Leak test should be made by pressurizing nitrogen gas to 3.8MPa(551psi). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitrogen leaks. For the test method, refer to the following figure. (Make a test with the service valves closed.
Refrigerant piping system (2) Vacuum Vacuum drying should be made from the service port provided on the outdoor unit’s service valve to the vacuum pump commonly used for Liquid pipe, Low Pressure Gas pipes, High Pressure Gas pipe. (Make Vacuum from Liquid pipe, Low Pressure Gas pipes, High Pressure Gas pipe with the service valve closed.) * Never perform air purging using refrigerant. • Vacuum drying: Use a vacuum pump that can evacuate to -100.7kPa(-14.6psi, 5Torr, -755mmHg). 1.
Refrigerant piping system This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement. Vacuum mode setting method ODU power reset Vacuum mode cancellation method Master unit PCB DIP switch off Switch off : 10, 12, 13 Master unit PCB DIP switch on Switch on : 10, 12, 13 Power reset Press the black button Main PCB (5 sec.
Electrical Wiring Electrical Wiring Caution 1. Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. CAUTION Be sure to have authorized electrical engineers do the electric work using special circuits in accordance with regulations and this installation manual. If power supply circuit has a lack of capacity or electric work deficiency, it may cause an electric shock or fire. 2.
Electrical Wiring Outdoor Unit Outdoor Unit Slave1 Master Slave2 Indoor Unit Remote controller Slave1 Slave2 Indoor Unit Indoor Unit Remote controller Remote controller Remote controller Outdoor Unit Outdoor Unit Master Slave1 Indoor Unit Master Slave2 Indoor Unit Remote controller Slave1 Slave2 Indoor Unit Indoor Unit Remote controller Remote controller 2-Core Shield Cable Indoor Unit Remote controller Multi-Core Cable CAUTION • Use the 2-core shield cables for communication li
Electrical Wiring Control box and connecting position of wiring - Remove all of the screws at front panel and remove the panel by pulling it forward. - Connect communication line between main and sub outdoor unit through the terminal block. - Connect communication lines between outdoor unit and indoor units through the terminal block. - When connecting communication line between outdoor unit and indoor units with shielded wire, connect the shield ground to the earth screw.
Electrical Wiring ENGLISH Communication and Power Lines 1) Communication cable • Type : shielding wire • Use wires of size : over 1.0~1.5mm2 • Maximum allowable line length: under 1,000m(3,281ft) 2) Remote control cable • Type : 3-core cable(shielding wire) 3) Central control cable Product type Wire type Diameter ACP&AC Manager (2-shielding wire,2-core wire) 1.0~1.5mm2 AC Smart (2-shielding wire,2-core wire) 1.0~1.5mm2 Simple central controller (2-shielding wire,2-core wire) 1.0~1.
Electrical Wiring Wiring of main power supply and equipment capacity 1. Use a separate power supply for the Outdoor Unit and Indoor Unit. 2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections. 3. The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker taking into account the line voltage drops. Make sure the power-supply voltage does not drop more than 10%. 4.
Electrical Wiring ENGLISH Field Wiring 1.
Electrical Wiring ■ 2 Outdoor Units-3Ø, 208/230V ■ When the power source is connected In series between the units.
Electrical Wiring • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.
Electrical Wiring ■ 3 Outdoor Units-3Ø, 208/230V ■ When the power source is connected In series between the units.
Electrical Wiring • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.
Electrical Wiring 2.
Electrical Wiring ■ 2 Outdoor Units-3Ø, 460V ENGLISH ■ When the power source is connected In series between the units.
Electrical Wiring WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.
Electrical Wiring ■ 3 Outdoor Units-3Ø, 460V ENGLISH ■ When the power source is connected In series between the units.
Electrical Wiring WARNING • Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.
Electrical Wiring ◆ Example Connection of Communication Cable • Connection of communication cable must be installed like below figure between indoor unit to outdoor unit. HR unit [STAR type] • Abnormal operation can be caused by communication defect, when connection of communication cable is installed like below figure(STAR type).
Electrical Wiring ◆ UX2 Chassis Wire Connection Left Side Right Side Main Power Terminal Block Insulation sleeves attachments Main Power Terminal Block Main Power Terminal Block Insulation sleeves attachments Insulation sleeves attachments Power/Ground lines Power/Ground lines Ground Cable Ground Cable Over 50mm Gap Over 50mm Gap Communication line Communication line Front Side 1 Front Side 2 Main Power Terminal Block Main Power Terminal Block Main Power Terminal Block Insulation sleeves at
Electrical Wiring ◆ UX3 Chassis Wire Connection ENGLISH Right Side Main Power Terminal Block Left Side Insulation sleeves attachments Main Power Terminal Block Main Power Terminal Block Insulation sleeves attachments Insulation sleeves attachments Power/Ground lines Power/Ground lines Ground Cable Ground Cable Over 50mm Gap Over 50mm Gap Communication line Communication line Front Side 1 Front Side 2 Main Power Terminal Block Main Power Terminal Block Insulation sleeves attachments Insu
Electrical Wiring DIP Switch Setting ◆ Location of setting Switch ■ SUB PCB DIP-SW01 DIP-SW02 7 - Segment SW03B (DATA CONFIRM) SW02B (AUTO ADDRESS) 72 Outdoor Unit
Electrical Wiring 1. You can check the setting values of the Master outdoor unit from the 7 segment LED. Power reset is required every time the DIP switch setting is changed ◆ Checking the setting of the Master unit The number is sequentially appeared at the 7 segment in 5 seconds after applying the power. This number represents the setting condition.
Electrical Wiring ◆ Setting the DIP switch ODU setting Function • If you set the Dip switch when power is on, the changed setting will not be applied immediately. The changed setting will be enabled only when Power is reset or by pressing Reset button. Index Inverter backup Const. 1 backup Const.
HR Unit PCB ENGLISH HR Unit PCB #4 valve housing #1 valve housing #1 cooling valve LED(green) #1 heating valve LED(red) 7-SEG SW05M (Switch for addressing HR unit) SW01M SW02M (Dip switch for setup of the function of HR unit) SW03M SW01M/SW03M/SW04M (Switch for manual valve addressing) SW04M ◆ 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.
HR Unit PCB 3) Selection of the model of the HR unit 1 2 (For 2 branches) PRHR021A 1 2 3 (For 3 branches) PRHR031A 3 4 1 2 (For 4 branches) PRHR041A Initial Setting 1 branches Connected 2 branches Connected 3 branches Connected 4 branches Connected ❈ Each model is shipped with the switches No.2 and No.3 pre-adjusted as above in the factory. WARNING • If you want to use a PRHR031A for 2 branches HR unit after closing the 3rd pipes, set the dip switch for 2 branches HR unit.
HR Unit PCB 4) Setting the Valve Group. ENGLISH DIP S/W setting Example Not control 4 3 2 1 Indoor Unit Indoor Unit Indoor Unit Indoor Unit No.1, 2 Valve Control 4 3 2 1 Indoor Unit Indoor Unit Large capacity indoor unit No.2, 3 Valve Control 4 3 2 1 Indoor Unit Large capacity indoor unit Indoor Unit No.3, 4 Valve Control 4 3 2 1 Large capacity indoor unit Indoor Unit Indoor Unit 4 3 2 1 Large capacity indoor unit Large capacity indoor unit No.1, 2 Valve / No.
HR Unit PCB 2. SW05M (Rotary S/W for addressing HR unit) Must be set to '0' when installing only one HR unit. When installing multiple HR units, address the HR units with sequentially increasing numbers starting from '0'. Ex) Installation of 3 HR units A B A B 3 4 1 2 A B 3 4 1 2 3 4 1 2 3.
HR Unit PCB S/W No. SW01M Setup No.1 Manual addressing of valve #1 No.2 Manual addressing of valve #2 No.3 Manual addressing of valve #3 No.
HR Unit PCB Auto Addressing 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 addressing would not be completed. 1) Auto addressing for indoor unit • The address of indoor units would be set by auto addressing 1) Wait for 3 minutes after applying power supply (Master and Slave Outdoor unit, Indoor unit).
HR Unit PCB WARNING 1. Execute auto addressing and auto pipe detection again whenever the indoor PCB and HR unit PCB is replaced. • Operation error occurs unless power is applied to the indoor and HR units. 2. Error No.200 occurs if the number of connected indoor units and that of scanned indoor units are different. 3. When auto pipe detection fails, complete it with manual pipe detection (see Manual pipe detection). 4.
HR Unit PCB Flow chart of auto-addressing for indoor units Power On Waiting 3 minutes Press RED Button for 10~15sec.
HR Unit PCB Confirmation of indoor unit address setting Outdoor unit is operated for 5~60 minues. 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.
HR Unit PCB Flow chart of manual addressing for pipe detection Execute in case of Auto pipe detection failure Wait for about 5 minutes. Turn No.1 of SW02M of HR unit PCB on. Reset the power of HR unit PCB. 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. The number of the indoor units installed is displayed.
HR Unit PCB No. Display and setup Setup and Contents • Operation: None • Display: None 1 7-SEG SW01M SW03M SW04M 2 7-SEG SW01M SW03M SW04M 3 7-SEG SW01M SW03M SW04M 4 7-SEG SW01M SW03M SW04M • 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.
HR Unit PCB Example of manual valve addressing (Zoning setting) (In case that an indoor unit of central control address "11" is connected to a valve #1 of an HR unit) Zoning control is connecting 2 or more indoor units at one pipe of HR unit. In case of Zoning control, in order to set controls with multiple indoor units connection uses the rotary switch. Namely, only the rotary switch changes from same valve set condition and set indoor units connection.
HR Unit PCB (In case that an indoor unit of central control address "11" is connected to a valve #1 of an HR unit) No. Display and Setup 1 7-SEG SW01M Setup and Contents • Operation: Turn dip S/W No.1 on. • Display: "11" is displayed in 7-SEG • Operation: Turn dip S/W No.1 on. • 7-SEG disappeared 2 7-SEG SW01M Identification of Manual Valve ID (Address) No. Display and Setup 1 7-SEG SW01M Setup and Contents • Operation: more than 2 dip switches turned on.
HR Unit PCB Setting method of Master indoor unit in zoning 1. Turn dip switch 5,6,10 on at system off. 2. Set the left Ratary switch for HR unit.(Rotary switch No. "0" HR unit No. "1") 3. Set the right Ratary switch for IDU unit.(Rotary switch No. "0" HR unit branch No. "1") 4. Display the Master IDU No. of the HR unit on 7segment.(Default display is "00" on 7segment) 5. Press the black button.(The IDU No. increase every 1 second in the zoning ) 6. Set the Master IDU(Press the red button during 1.
HR Unit PCB ◆ Group Number setting for Indoor Units ① Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off. ② The communication lines connected to INTERNET terminal should be connected to central control of Outdoor unit with care for their polarity( A → A, B → B ) ③ Turn the whole system on. ④ Set the group and Indoor Unit number with a wired remote control. ⑤ To control several sets of Indoor Units into a group, set the group ID from 0 to F for this purpose.
Test Run Test Run Checks Before Test Run 1 Check to see whether there is any refrigerant leakage, and slack of power or communication cable. 2 Confirm that 500 V megger shows 2.0 MΩ or more between power supply terminal block and ground. Do not operate in the case of 2.0 MΩ or less. NOTE: Never carry out megaohm check over terminal control board. Otherwise the control board would be broken.
Test Run The phenomena from master component failure Component Phenomenon Not operating Outdoor EEV Check method and Trouble shooting Motor insulation broken Check resistance between terminals and chassis Strainer clogged Change strainer Oil leakage Check oil amount after opening oil port Stop during running Motor insulation failure Check resistance between terminals and chassis Abnormal noise during running R(L1)-S(L2)-T(L3) misconnection Check compressor R(L1)-S(L2)-T(L3) connection High pr
Test Run Sensor Checking Function Sensor checking function judges whether the current temperature of indoor and outdoor unit sensors is right or not. 3 indoor temperature sensors, 10 outdoor temperature sensor Note 1), 2 outdoor pressure sensors. This function is used along with Refrigerant Auto recharge and Quantity auto decide function. It is used for judging sensor abnormality.
Test Run Start ENGLISH 3 minutes past after power reset YES NO DIP switch set Setting 1 Setting 2 Setting 3 Setting 4 Note 3) Press black button for 2 seconds YES Heat Pump? NO YES Press black button for 5 seconds NO Sensor Normal Press black button for 5 seconds YES NO Setting 1 Setting 2 Setting 3 Setting 4 Display Error : Heat Recovery Press black button for 2 seconds End Refrigerant Auto Recharge Refrigerant Auto decide Cooling Heating All DIP switches OFF and press black button
Test Run Display codifica errore controllo sensori In case error occurs during sensor checking process, error display is as shown below. Following contents are displayed one after the other on the main PCB of master Unità esterna. Indoor sensor error : 319 Outdoor sensor error : 309 * 5 number of errors is displayed continuously and repeatedly. Displaying error content Displaying error content ■ Indoor unit error display 1.1st and 2nd number represents indoor unit number. 2.
Test Run This function charges appropriate amount of refrigerant automatically through cycle operation. It can be used when refrigerant amount Isn't certain because of SVC and leakage. Start Wait for 3 min. after power reset Set the Dip S/W. (Refer to DIP S/W setting) Press the black button. (Press until ‘508’ is displayed) Press the black button. IDU runs with cooling mode In designated order.
Test Run Low pressure gas pipe manifold Capillary Assembly Procedure 1. Arrange manifold,capillary assembly, refrigerant vessel and scale 2. Connect manifold to the gas pipe service valve of ODU as shown in the figure. 3. Connect manifold and Capillary tube. Use designated capillary assembly only. If designated capillary assembly isn't used, the system may get damaged. 4. Connect capillary and refrigerant vessel. 5. Purge hose and manifold. 6.
Test Run ENGLISH Refrigerant Checking Function (Setting 2) This function judges refrigerant leakage and overcharging It can be used with refrigerant auto charging function.
Test Run CAUTION 1. Guaranteed Temperature range(Error occurs out of guaranteed temperature range) IDU : 20°C ~ 32°C(68~90°F) ODU : 0°C ~ 43°C (32~109°F) 2. Set IDU wired remote controller temperature sensor setting as 'IDU'. 3. Make certain that IDU doesn't run with thermo off mode during operation. [ Error contents about auto refrigerant charging function ] 1. : Temperature Range Error (In case that IDU or ODU is out of range) 2.
Test Run This function is checking process for normal operation of parts and system On operating system. • All processes carry out included refrigerant amount judge logic and check normal condition of parts on cooling mode. • This function check only normal condition of parts on heating mode. • Saved data can check using LGMV. Start Press the black button for 2 sec All IDU operation on Cooling mode Temp.
Test Run Integrated Test Running Function_Heating Mode (Setting 4) This function is checking process for normal operation of parts and system On operating system. • All processes carry out included refrigerant amount judge logic and check normal condition of parts on heating mode. • This function check only normal condition of parts on heating mode. • Saved data can check using LGMV. Start Press the black button for 2 sec. Temp.
Test Run 2. Set IDU wired remote controller temperature sensor setting as 'IDU'. 3. Make certain that IDU doesn't run with thermo off mode during operation. [ Error contents about auto refrigerant charging function ] 1. : Temperature Range Error (In case that IDU or ODU is out of range) 2. : System Unstable Error (In case, After 45 min operating the system, it does not be stable) How to Cope with Result of Refrigerant checking 1.
Test Run Night Low Noise 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 RPM / Time Settings Capacity Set the DIP S/W Capacity(Hp) Step 8 10~14 Fan Maximum RPM 1 Reset the power 8 9 6.5 10.5 3 5 12 4 8 9 6.5 10.5 6 5 12 7 8 9 6.5 10.5 5 12 ① 2 Note 1) Setting the Fan Max.
Test Run This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement. Vacuum mode setting method Vacuum mode cancellation method ODU power reset Set the DIP S/W OFF Power reset Set the DIP S/W ON Press the black button Main PCB (5 sec.
Test Run Static pressure compensation mode This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan discharge of ODU.
Test Run Error Indicator • This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. • Error mark is displayed on display window of 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.
Test Run Display 2 2 2 Outdoor unit related error 2 2 2 3 106 3 4 5 6 8 9 0 Title Cause of Error 1 Master Outdoor Unit Inverter Compressor DC charging is not performed at Master Outdoor Unit DC link Low Voltage1 after starting relay turn on. 2 Slave1 Outdoor Unit Inverter Compressor DC charging is not performed at Slave1 Outdoor Unit DC link Low Voltage after starting relay turn on.
Test Run Display 3 3 Outdoor unit related error 3 3 4 4 2 3 4 5 6 0 1 Cause of Error 1 2 Slave1 Outdoor Unit Inverter Compressor System is turned off by Slave1 Outdoor Unit Inverter High Discharge Temperature Compressor High Discharge Temperature 3 Slave2 Outdoor Unit Inverter Compressor System is turned off by Slave2 Outdoor Unit Inverter Discharge High Temperature Compressor High Discharge Temperature 1 Master Outdoor Unit Constant Speed Compressor1 High Discharge Temperature System
Test Run Display 4 4 4 Outdoor unit related error 4 4 4 4 4 108 2 3 4 5 6 7 8 9 Title Cause of Error 1 Master Outdoor Unit Low Pressure Sensor Fault Master Outdoor Unit Low Pressure Sensor open or short 2 Slave1 Outdoor Unit Low Pressure Sensor Fault Slave1 Outdoor Unit Low Pressure Sensor open or short 3 Slave2 Outdoor Unit Low Pressure Sensor Fault Slave2 Outdoor Unit Low Pressure Sensor open or short 1 Master Outdoor Unit High Pressure Sensor Fault Master Outdoor Unit High
Test Run Display 5 5 5 Outdoor unit related error 5 5 5 6 6 6 0 2 Omitting connection of R(L1), S(L2), T(L3) Omitting connection of Slave1 Outdoor Unit power of Slave1 Outdoor Unit 3 Omitting connection of R(L1), S(L2), T(L3) Omitting connection of Slave2 Outdoor Unit power of Slave2 Outdoor Unit 1 Excessive capacity of indoor units Excessive connection of indoor units compared to capacity of Outdoor Unit 2 Excessive capacity of indoor units from zoning branches Excessive connection of
Test Run Display 7 7 7 Outdoor unit related error 7 7 7 8 8 110 0 3 5 6 7 9 6 7 Title Cause of Error 1 Constant2 CT Sensor Error of Master Outdoor Unit Constant2 CT Sensor open or short of Master Outdoor Unit 2 Constant2 CT Sensor Error of Slave1 Outdoor Unit Constant2 CT Sensor open or short of Slave1 Outdoor Unit 3 Constant2 CT Sensor Error of Slave2 Outdoor Unit Constant2 CT Sensor open or short of Slave2 Outdoor Unit 1 Instant Over Current(Peak) of Master Outdoor Unit PFC
Test Run Display 1 0 0 4 5 Cause of Error 1 Communication Error Between Master Outdoor Unit and Other Outdoor Unit Failing to receive Slave Unit signal at main PCB of Master Outdoor Unit 2 Communication Error Between Slave1 Outdoor Unit and Other Outdoor Unit Failing to receive master and other Slave Unit signal at main PCB of Slave1 Outdoor Unit 3 Communication Error Between Slave2 Outdoor Unit and Other Outdoor Unit Failing to receive master and other Slave Unit signal at main PCB of Slave2
Test Run Display 1 1 1 Outdoor unit related error 1 1 1 1 112 5 5 7 7 8 8 8 3 4 3 4 2 4 5 Title Cause of Error 1 Master upper part heat exchanger temperature sensor error Master Outdoor Unit upper part temperature sensor open/short 2 Slave1 upper part heat exchanger temperature sensor error Slave1 Outdoor Unit upper part temperature sensor open/short 3 Slave2 upper part heat exchanger temperature sensor error Slave2 Outdoor Unit upper part temperature sensor open/short 1
Test Run Display Outdoor unit related error 1 1 8 9 9 6 3 4 Cause of Error HR unit related error 1 Master const.2 oil balance pipe Temperature Sensor error Master Outdoor Unit oil balance temperature Sensor open or short 2 vSlave1 const.2 oil balance pipe Temperature Sensor error Slave1 Outdoor Unit oil balance temperature Sensor open or short 3 Slave2 const.
Caution For Refrigerant Leaks Caution For Refrigerant Leaks The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available.
Caution For Refrigerant Leaks Outdoor unit Indoor unit Smallest room ■ Calculate refrigerant concentration Total amount of replenished refrigerant in refrigerant facility (lbs) ≤ Refrigerant concentration Capacity of smallest room where indoor unit is installed (ft3) (lbs/ft3) (R410A) In case the result of calculation exceeds the limiting concentration, perform the same calculations by shifting to the second smallest, and the third smallest rooms until at last the result is below the limiting concent
Installation Guide at the seaside Installation Guide at the seaside CAUTION 1. Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. 2. Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance. 3.
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