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CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT

ENGLISH

Connect the cable to the Indoor unit

Connect the cable to the indoor unit by connecting the wires to the terminals on the control
board individually according to the outdoor unit connection. (Ensure that the color of the wires of
the outdoor unit and the terminal No. are the same as those of the indoor unit.)
The earth wire should be longer than the common wires.
The circuit diagram is not subject to change without notice.
When installing, refer to the circuit diagram behind the panel front of Indoor Unit the wiring
diagram on the Control Cover Inside Outdoor Unit.

• The circuit diagram is not subject to change without notice.
• Be sure to connect wires according to the wiring diagram.
• Connect the wires firmly, so that not to be pulled out easily.
• Connect the wires according to color codes by referring the wiring diagram.

CONNECTING THE CABLE BETWEEN INDOOR
UNIT AND OUTDOOR UNIT

A3UW18GFA0

A4UW24GFA0

A5UW30GFA0

CAUTION

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Содержание UHXM120BA1

Страница 1: ...t 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 MULTI MFL67452306 Rev 00_032119 www lg com Copyright 2013 2019 LG Electronics Inc All Rights Reserved ENGLISH ...

Страница 2: ...uality may deteriorate if the air conditioner is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here...

Страница 3: ...onnect the ground wire to gas or water pipes lightening rod or telephone ground wire There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock due to dust water etc Use the correctly rated breaker or fuse There is risk of fire or electric shock Do not modify or extend the power cable If the power cable or cord has scrath...

Страница 4: ... the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure If strange sound smell or smoke comes from product Immediately turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Ventilate the product room from time to time when operating it together with a stove or heating element etc Oxygen defi...

Страница 5: ... it The condensed water inside can spill Do not mix air or gas other than the specified refrigerant used in the system If air enters the refrigerant system an excessively high pressure results causing equipment damage or injury If the refrigerant gas leaks during the installation ventilate the area immediately Otherwise it can be harmfull for your health Dismantling the unit treatment of the refri...

Страница 6: ...21 Connection of piping Outdoor 24 Installation 25 Installation of The Main Unit 26 CONNECTINGTHE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT 26 Connect the cable to the Indoor unit 28 Connect the cable to the Outdoor unit 30 Connection of Wiring 31 CHECKING THE DRAINAGE AND FORMING THE PIPINGS 31 Checking the Drainage 32 Forming the Piping 33 AIR PURGING AND EVACUATION 33 Checking method 34 Evacua...

Страница 7: ...EA Holder Remote Control Type A screw and plastic anchors Figure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Multi meter Hexagonal wrench Ammeter Gas leak detector Thermometer Level Flaring tool set Name Installation Parts Installation Tools INSTALLATION ...

Страница 8: ... so that the warm air and noise from the air conditioner do not disturb neighbors Place that can sufficiently endure the weight and vibration of the outdoor unit and where even installation is possible Place that has no direct influence of snow or rain Place with no danger of snowfall or icicle drop Place without weak floor or base such as decrepit part of the building or with a lot of snow accumu...

Страница 9: ...hole through the wall for piping connections must be done safely Type 2 Type 3 Chassis Hook Installation Plate Type A Installation Plate Type A Chassis Hook Installation Plate Type A Indoor Type Capacity kBtu h Type Wall mounted ART COOL Mirror 7 9 12 1 3 18 24 2 4 Installation plate Left rear piping Right rear piping Ø 65 mm Ø 65 mm 105 mm 105 mm 65 mm 55 mm 45 mm 140 mm Ø 65 mm 65 mm 45 mm Ø 65 ...

Страница 10: ...Total Length Max Main Pipe Length A B Total Branch Pipe Length Max Branch Pipe Length Max Elevation h1 In In Elevation h2 1 Ø 40 100 50 50 15 30 15 48 135 55 80 15 30 15 56 145 55 90 15 30 15 h2 h1 h1 A A Branch Pipe Main Pipe Distributor Distributor B B h2 Multiple Piping Type Distributor Type Capacity is based on standard length and maximum allowance length is on the basis of reliability If outd...

Страница 11: ...m B Room Branch Length Standard Length x 20 g m C Room Branch Length Standard Length x 20 g m CF Correction Factor x 100 h CF Max number of connectable indoor unit Total number of connected indoor unit Phase Capacity kBtu h Standard Length m Max Piping for one room m Max total Piping Length Additional Charge g m 1 Ø 18 7 5 25 50 20 24 7 5 25 70 20 30 7 5 25 75 20 40 7 5 25 85 20 Phase Capacity kBt...

Страница 12: ...ide of desired connecting direction then cover side is separated 3 In case of connecting direction is left or right path through the hole of cover side 1 Remove the rubber stopple of desired direction of drainage 2 As the following picture Insert drain hose in the handle of drain pan and join drain hose and connecting hose Panel Front Connector Panel Front Connector After removing the pipe hole cu...

Страница 13: ...point Drive the four plastic anchors into drilled points Hang the hole of product at the upper screws In this time Remove the map Falling attention Check the fixed product with light power Adjust level even by level guage and fix to installation for reference on the wall INSTALLATION GUIDE MAP IN STAIIATIO N GUID E MAP Plastic anchors IN STALLATIO N GUID E MAP INSTALLATION GUIDE MAP Hanger hole Re...

Страница 14: ... product with plastic anchors and fix completely the upper screws In case of nothing wrong in the matter connect the pipe and the wire Installation manual reference Drill a hole in the wall Drill the piping hole with a Ø 65 mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Refer to No 5 on this page when making a hole in the...

Страница 15: ...mation to the surface of the wall Upper part guide groove Right part guide groove 3 Please fix remote controller upper part into the setup board attached to the surface of the wall as the picture below and then connect with setup board by pressing lower part Please connect not to make a gap at the remote controller and setup board s upper and lower right and left part When separating remote contro...

Страница 16: ...nstalling the wired remote controller do not bury it in the wall It can cause damage in the temperature sensor Do not install the cable to be 50 m or above It can cause communication error When installing the extension cable check the connecting direction of the connector of the remote controller side and the product side for correct installation If you install the extension cable in the opposite ...

Страница 17: ...oller about 5 ft 1 5 m above the floor in an area with good air circulation at an average temperature Do not install the remote controller where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Uncontrolled areas such as an outside wall behind the remote controller This remote controll...

Страница 18: ... you remove burrs in order to avoid dropping burrs into the tubing Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper pipe in a bar in the dimension shown in the table below Copper tube 90 ...

Страница 19: ...at the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit Inclined Inside is shining without scratches Smooth all round Even length all round Surface damaged Cracked Uneven thickness Improper flaring Drain hose Drain hose Drain hose Connecting cable Gas side piping Liquid side piping Drain hose Loop Connecting pipe Connecting cable Tape Drain hose ...

Страница 20: ...are nut with a wrench When extending the drain hose at the indoor unit install the drain pipe Wrap the insulation material around the connecting portion Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap Wrap the area which accommodates the rear piping housing section with vinyl tape Outside diamet...

Страница 21: ...ecting pipe order 1 ROOM A E gas side pipe 2 ROOM A E liquid side pipe Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Wrap with vinyl tape Drain hose Pipe Vinyl tape wide Ø 12 7 1 2 inch Connector Outdoor unit Main gas side valve Main liquid side valve Gas ...

Страница 22: ...g Figure 3 Plug the pipe through holes with putty or insulation material procured locally to stop up all gaps as shown in the figure 3 Insects or small animals entering the outdoor unit may cause a short circuit in the electrical box Outdoor unit Continuous Forward Sideways Backward Knock out Base pan Downward Gas side piping Bigger Dia Liquid side piping Smaller Dia Putty or insulating material p...

Страница 23: ...ld supply Insulation Insulation Insulation Insulation Tape field supply Tape field supply Tape field supply Tape field supply Ⓐ To Outdoor Unit Ⓑ To BD Unit Ensure that the branch pipes are attached horizontally or vertically see the diagram below Branch pipe should be insulated with the insulator in each kit Model Gas Pipe Liquid Pipe PMBL5620 Ø 19 05 Ø 19 05 Ø 19 05 Ø 9 52 Ø 9 52 Ø 9 52 PMBL1203...

Страница 24: ...iagram below for both ceiling suspended installation and wall mounted installation This unit does not require drain treatment as it uses internal foam treatment as low pressure piping insulation Service direction is the side B and C The piping for the indoor unit may be led around in direction A The inclination of side B must be within 5 degrees forward or back or to the sides 50 30 111 B C 50 50 ...

Страница 25: ...er installing the hanger Screws M5 Screws M5 locally procude locally procude Screws M5 locally procude PE P E BD unit Six sided Nut Six sided Nut M10 or M8 M10 or M8 Six sided Nut M10 or M8 Hanger metal Hanger metal Hanger metal Flat washer Flat washer Flat washer Hanging bolt Hanging bolt Hanging bolt M10 or M8 15 00 NOTE This unit has two different installation types 1 Ceiling suspended type and...

Страница 26: ...hould be longer than the common wires The circuit diagram is not subject to change without notice When installing refer to the circuit diagram behind the panel front of Indoor Unit the wiring diagram on the Control Cover Inside Outdoor Unit The circuit diagram is not subject to change without notice Be sure to connect wires according to the wiring diagram Connect the wires firmly so that not to be...

Страница 27: ...ications This equipment shall be provided with a cord set complying with the national regulation Provide a circuit breaker between power source and the unit as shown below Air Conditioner Main power source Circuit Breaker Use a circuit breaker or time delay fuse GN YL 20 mm NORMAL CROSS SECTIONAL AREA 0 75 mm2 H07RN F ø 7 5 mm GN YL 20 mm Phase 1Ø Capacity kBtu h 18 24 30 40 48 56 NORMAL CROSS SEC...

Страница 28: ... burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 Do not install an earth ...

Страница 29: ...wn 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 tighterning impossible Over tightening the terminal screws may break them Round pressure terminal Power wire...

Страница 30: ...o the circuit diagram on the control cover inside outdoor unit 1 Remove the control cover Loosen the two screws and slide the cover in the direction of the arrow 2 Perform wiring with reference the wiring diagram on a control cover of outdoor unit Allow 300 mm for the pulling out section of harness Fix the wires completely with wire clamps 4 locations 3 Put in the cover in the direction of the arr...

Страница 31: ...akage and goes out the drain exit Drain piping 1 The drain hose should point downward for easy drain flow 2 Do not make drain piping Drain pan Drain hose Leakage checking Connecting area drain hose Leakage checking Downward slope Do not raise Water leakage Accumulated drain water Air Waving Water leakage Tip of drain hose dipped in water Water leakage Ditch Less than 50 mm gap CHECKING THE DRAINAG...

Страница 32: ...connecting cable from down to up 2 Secure the tapped piping along the exterior wall using saddle or equivalent Trap is required to prevent water from entering into electrical parts Plastic band Taping Drain hose Pipings Connecting cable Power supply cord Seal a small opening around the pipings with gum type sealer In cases where the Outdoor unit is installed above the Indoor unit perform the follo...

Страница 33: ...r than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position Do a leakage test of all joints of the tubing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth After the system is found to be free of leaks relieve the nitrogen pressure by loosening the charge hose...

Страница 34: ...rvice port slightly to release the pressure then remove the hose Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system Lo Hi Manifold valve Vacuum pump Open Open Pressure gauge Indoor unit Outdoor unit Finishing the Job Use a vacuum pump or Inert nitrogen gas wh...

Страница 35: ...tom groove of cover side left 2 Assemble connecting lead wire with controller and first fix the upper part of panel front then match the lower part of panel front 3 Suspend hook of front panel in the groove after contract lower of 2 screws Panel Front Connector Panel Front Connector PANEL FRONT ASSEMBLY ART COOL TYPE ONLY ...

Страница 36: ...ocation where LGAP Sub PCB for Central Controller is installed LGAP Sub PCB for Central Controller is installed Please connect the wire after installing the LGAP Please connect the wire after installing the LGAP This is the space for installatio n of PI485 Gateway This is the space for installatio n of PI485 Gateway Accessor y Accessor y Please connect the wire after installing PI485 Please connec...

Страница 37: ...e of the gas side service valve Measure the temperature of the intake and discharge of air Ensure the difference between the intake temperature and the discharge is more than 8 C For reference the gas side pressure of optimum condition is as below Cooling Refrigerant Outside ambient TEMP The pressure of the gas side service valve R410A 35 C 95 F 8 5 9 5 kg cm2 G 120 135 P S I G NOTE If the actual ...

Страница 38: ...tep 2 Mode Lock Cooling Night Quiet Mode Step 1 Mode Lock Cooling Night Quiet Mode Step 2 Mode Lock Cooling Saving Power Consumption Step 1 Mode Lock Cooling Saving Power Consumption Step 2 Mode Lock Heating Saving Power Consumption Step 1 Mode Lock Heating Saving Power Consumption Step 2 When you set the DIP switch you should turn off the circuit breaker or shut the power source of the product do...

Страница 39: ...DIP Switch as follow after shutting the power source down 2 Reset the power 3 Check that the Red LED of PCB is on during work The indoor unit is operated by force 4 Add the specific amount of refrigerant When the green LED of PCB is on compressor is going to be off because of low pressure You should return the DIP Switch to operate normally after finishing the operation CAUTION ...

Страница 40: ...low in winter the wiring error check function will not be operated Red LED is lighting Power consumption and current Nomal Time Step 1 Step 2 Wiring Error Check You can check whether or not the wiring is correct Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down 2 Reset the power 3 Check that the Re and Green LED of PCB are on during work The indoor unit is opera...

Страница 41: ... Step2 A 8 10 13 18 20 22 Saving Power Consumption step 1 Mode Lock Cooling Saving Power Consumption step 2 Mode Lock Cooling Saving Power Consumption step 1 Mode Lock Heating Saving Power Consumption step 2 Mode Lock Heating Mode Lock Cooling Night Quiet Mode step 1 Mode Lock Cooling Night Quiet Mode step 2 Step 1 Step 2 h Noise level Step 1 Step 2 If comp frequency and fan speed are down the coo...

Страница 42: ...ode Saving Power Consumption with Mode Lock Mode Lock Cooling Night Quiet Mode step 1 Mode Lock Cooling Night Quiet Mode step 2 Mode Lock Cooling Saving Power Consumption step 1 Mode Lock Heating Saving Power Consumption step 1 Mode Lock Cooling Saving Power Consumption step 2 Mode Lock Heating Saving Power Consumption step 2 Only Cooling Mode Only Heating Mode ...

Страница 43: ...splay Example 1page 2page 1 time Low Pressure 890 kpa LP 89 2 times Hi Pressure 2 900 kpa HP 290 3 times Discharge Temp 85 C DS 85 4 times Cond Out Temp 10 C CS 10 5 times Suction Temp 10 C SS 10 6 times ODU Air Temp 10 C AS 10 7 times Current 15 A A 15 8 times Voltage 230 V V 230 9 times Comp Hz 100 Hz F 100 10 times DC Link Voltage 230 V dc 230 TACT SW1 When you push the Tact Switch use the mate...

Страница 44: ...y weights 1 3 times Ex 1 Outdoor unit A9UW56GFA0 UHXM160BA1 connectable maximum capacity is 100 kBtu Indoor unit AMNH366BGA1 NHXM110D1A1 ABNH24GHLA2 NHXM70D1A1 ABNH24GHLA2 NHXM70D1A1 36 24 24 x 1 3 84 x 1 3 109 2 kBtu h this combination has a some problem 2 Outdoor unit A9UW56GFA0 UHXM160BA1 Indoor unit ABNH18GHLA2 NHXM50D1A1 ABNH24GHLA2 NHXM70D1A1 AMNW18GECA0 MS18AH1 18 24 x 1 3 18 72 6 kBtu h th...

Страница 45: ...r draining to prevent damage from localized heavy rain and avoid frequent flooded area Sea wind Sea wind Sea wind Windbreak Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced Do not install the product where it could be expose...

Страница 46: ...stem 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 50 cm 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 10 cm always remove snow for operation 1 The height of H frame must be mo...

Страница 47: ...ENGLISH 47 ...

Страница 48: ......

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