LG A5UW40GFA1 Installation Manual Download

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SEASONAL WIND AND CAUTIONS IN WINTER

ENGLISH

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. 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.

The height of H frame must be more than 2 times the snowfall and its width shall not
exceed the width of the product. (If width of the frame is wider than that of the product,
snow may accumulate)

Don't install the suction hole and discharge hole of the Outdoor Unit facing the seasonal
wind.

Model

Current(A)

A2UW16GFA0

8.4

A3UW21GFA0

11.0

A5UW30GFA0

16.5

A5UW40GFA1

29.0

A5UW48GFA1

A7UW40GFA0

26.0

A8UW48GFA0

27.0

A9UW56GFA0

Frequency / Voltage

• Argentina : 50 Hz 220-240 V~

• Mexico, Brazil : 60 Hz 220 V~

Summary of Contents for A5UW40GFA1

Page 1: ...rdance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly MULTI www lg com Copyright 2012 2020 LG Electronics Inc All Rights Reserved INSTALLATION MANUAL AIR CONDITIONER MFL67655701 Rev 03_111320 PORTUGUÊS ENGLISH ESPAÑOL ...

Page 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...

Page 3: ...Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock 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 scratches or skin peeled off or deteriorated then it must be replaced There is risk of fire or electric shock For installation removal or...

Page 4: ...age or failure or unintended operation Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit This could result in personal injury and product damage Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock Do not place ANYTHING on the power cable There is risk of fire or electric shock Whe...

Page 5: ...e refrigerant gas leaks during the installation ventilate the area immediately Otherwise it can be harmful for your health Dismantling the unit treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteri...

Page 6: ...BLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT 20 Connect the cable to the Indoor unit 21 Connect the cable to the Outdoor unit 23 Connection of Wiring 24 CHECKING THE DRAINAGE AND FORMING THE PIPINGS 24 Checking the Drainage 25 Forming the Piping 26 AIR PURGING AND EVACUATION 26 Checking method 27 Evacuation 28 INSTALLATION PI485 29 TEST RUNNING 30 FUNCTION 30 DIP S W Setting 31 Forced Cooling Operatio...

Page 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 ...

Page 8: ...ioner weight into account and select a place where noise and vibration are minimum 5 Select a place so that the warm air and noise from the air conditioner do not disturb neighbors If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit location Consult local codes regarding rooftop mounting Install the...

Page 9: ...ix the unit securely by means of the foundation bolts Prepare 4 sets of M12 foundation bolts nuts and washers each which are available on the market It is best to screw in the foundation bolts until their length are 20 mm from the foundation surface Unit mm Foundation bolt executing method 200 Nut 75 75 200 Spring washer Frame Anti vibration materials Four bolt are required 3 thread ridges H Beam ...

Page 10: ...ity kBtu h Total Length Max Length A B Max Elevation h1 In In Elevation h2 1Ø 14 16 30 20 15 7 5 18 50 25 15 7 5 21 50 25 15 7 5 24 27 70 25 15 7 5 30 75 25 15 7 5 40 48 85 25 15 7 5 Phase Capacity kBtu h Total Length Max Main Pipe Length A B Total Branch Pipe Length Max Branch Pipe Length Max Elevation h1 In In Elevation h2 1Ø 40 100 50 50 15 30 15 48 135 55 80 15 30 15 56 145 55 90 15 30 15 3Ø 4...

Page 11: ... 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 1Ø 14 16 7 5 20 30 20 18 7 5 25 50 20 21 7 5 25 50 20 24 27 7 5 25 70 20 30 7 5 25 75 20 40 48 7 5 25 85 20 Phase Capacity k...

Page 12: ... 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 ...

Page 13: ...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 ...

Page 14: ... flare 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 Drain hose ...

Page 15: ...nnecting 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 Ga...

Page 16: ... entering 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 ma...

Page 17: ...n 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 PMBL1203F0 Ø 19 05 Ø 9 52 Ø 9 52 unit mm Branch For detailed...

Page 18: ...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 ...

Page 19: ...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...

Page 20: ...between power source and the unit as shown below Air Conditioner Main power source Circuit Breaker Use a circuit breaker or time delay fuse NORMAL CROSS SECTIONAL AREA 0 75 mm2 H07RN F Ø 7 5 mm GN YL 20 mm 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 Ensu...

Page 21: ...at 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 leakage circuit breaker in a wet or moist area 8 The following woul...

Page 22: ...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...

Page 23: ...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...

Page 24: ...eakage 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 50mm gap CHECKING THE DRAINAG...

Page 25: ...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...

Page 26: ...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...

Page 27: ...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...

Page 28: ... where This label is should be applied in the location 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 connec...

Page 29: ...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 ...

Page 30: ...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...

Page 31: ... 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 Distributor Type 40 48 56 1Ø kBtu h 42 48 56 3Ø kBtu h Multi Piping Type 14 16 18 21 1Ø kBtu h 24 27 30 1Ø kBtu h 40 48 1Ø kBtu h...

Page 32: ...y after finishing wiring error check If Outdoor and Indoor temperature is too low in winter the wiring error check function will not be operated Red LED is lighting Power consumption and current Normal 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 Che...

Page 33: ...ode with Mode Lock Saving Power Consumption with Mode Lock 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 Phase Ø 1 Model...

Page 34: ...er is changed CAUTION Mode Lock Setting Procedure 1 Set the DIP Switch as follow after shutting the power source down 2 Reset the power Mode Lock with Night Quiet Mode 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 Loc...

Page 35: ...nit AMNH186BHA0 MB18AH AMNH246BHA0 MB24AH AMNH246BHA0 MB24AH 18 24 24 x 1 3 66 x 1 3 85 8 kBtu this combination has a some problem 2 Out door unit FM56AH Indoor unit AMNH186BHA0 MB18AH AMNH246BHA0 MB24AH AMNH18GD5L0 MS18AH 18 24 x 1 3 18 72 6 this combination can be ok MAX COMBINATION CAPACITY Multi Piping Type Distributor Type Phase Ø Capacity kBtu h Max Room No Combination Indoor Capacity kBtu h...

Page 36: ...ct a well drained place 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 exposed to sea wind salty wind directly It can result corrosion on th...

Page 37: ...or 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 more than 2 times the snowfall and its width shall not exceed the width of the product If width of the ...

Page 38: ...38 ENGLISH ...

Page 39: ...do de México C P 54033 Tel 55 5321 1919 Página web http www lg com mx Model Modelo s A2UW16GFA0 A3UW21GFA0 A5UW30GFA0 A5UW40GFA1 A5UW48GFA1 A7UW40GFA0 A8UW48GFA0 A9UW56GFA0 This mark applies to the following products Esta marca se aplica a los siguientes productos A5UW40GFA1 A5UW48GFA1 A7UW40GFA0 A8UW48GFA0 A9UW56GFA0 ...

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