LG A4UQ306FA2 Installation Manual Download Page 7

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Installation Manual

Installation of Indoor, Outdoor Unit

The wall you select should be strong and
solid enough to prevent vibration

1. Mount the installation plate on the wall with

type "A" screws. If mounting the unit on a
concrete wall, use anchor bolts.

• Mount the installation plate horizontally by

aligning the centerline using a level.

2. Measure the wall and mark the centerline.

It is also important to use caution
concerning the location of the installation
plate-routing of the wiring to power outlets
is through the walls typically. Drilling the
hole through the wall for piping connections
must be done safely.

Chassis

Hook

Installation Plate

Type “A”

Chassis

Hook

Chassis

Hook

Installation Plate

Type “A”

Installation Plate

Type "A" Screws

Installation Plate

Chassis

Hook

Type "A" Screws

Ø70

133

Right

rear

piping

Left
rear
piping

Installation Plate

Place a level on raised tab

Unit Outline

217

175

442

Ø70

Right
rear
piping

Left
rear
piping

Installation Plate

Measuring Tape

Hanger

Place a level on raised tab

Unit Outline

207

105

460

570

<Type 1>

<Type 2>

<Type 3>

<Type 4>

<Type 2>

<Type 1>

<Type 3>

<Type 4>

Installation plate

Left rear piping

Right rear piping

Ø70

133

Ø70

100

Installation plate

Ø70

110

Left rear piping

Right rear piping

Fixing Installation Plate

(Unit : mm)

Indoor Type

Capacity (kBtu/h)

Type

Wall mounted

9,12

18,24

ART COOL Mirror

9,12

18,24

Summary of Contents for A4UQ306FA2

Page 1: ...s 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 TYPE Multi Type ...

Page 2: ...d Evacuation 24 26 Installation PI485 26 Test running 28 Installation guide at the seaside 29 o Level gauge o Screw driver o Electric drill o Hole core drill ø65mm o Horizontal meter o Flaring tool set o Specified torque wrenches 1 8kg m 4 2kg m 5 5kg m 6 6kg m different depending on model No o Spanner Half union o A glass of water o Screw driver o Hexagonal wrench 4mm o Gas leak detector o Vacuum...

Page 3: ...ovided Standard Type Installation plate Type B screws 2EA Type A screw Type A screw Type A and C screw Type A and C screw Holder Remote Control 6 EA 8 EA 5 EA 2 EA 5 EA 2 EA Installation Manual 3 Installation Parts Provided ...

Page 4: ... breaker and main breaker No installation may cause fire and electric shock For installation always contact the dealer or service center Otherwise it may cause fire electric shock explosion or injury For electric work contact the dealer or service center Otherwise It will cause fire or electric shock To prevent injury to the user or other people and property damage the following instructions must ...

Page 5: ...s leakage after installation and repair of product Otherwise it may cause failure of product Install the drain hose to ensure that drain can be securely done Otherwise it may cause water leakage Keep the level even while installing the product Otherwise it may cause vibration or water leakage Do not install the product where the noise or hot wind from the outdoor unit could give any casualty to th...

Page 6: ...tion from the heat pump is not restricted 2 Ensure the unit is unobstructed allow proper space on all sides according to the arrows and distance measurements in the figure at right 3 Do not allow animals or plants to remain the in path of the discharging warm air 4 Take the air conditioner weight into account and select a place where noise and vibration are minimum 5 Select a place so that the war...

Page 7: ...e done safely Chassis Hook Installation Plate Type A Chassis Hook Chassis Hook Installation Plate Type A Installation Plate Type A Screws Installation Plate Chassis Hook Type A Screws Ø70 Ø70 133 95 Right rear piping Left rear piping Installation Plate Place a level on raised tab Unit Outline 217 175 442 442 Ø70 Ø70 69 56 Right rear piping Left rear piping Installation Plate Measuring Tape Measuri...

Page 8: ...A B Max Elevation h1 In In Elevation h2 40 100 50 50 15 30 15 48 135 55 80 15 30 15 56 145 55 90 15 30 15 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 Drill the piping hole with a ø70mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side ...

Page 9: ...r unit Additional charge g Total Main piping Length Main Standard Length x 50g m A Room Branch Length Standard Length x 20g m B Room Branch Length Standard Length x 20g m C Room Branch Length Standard Length x 20g m CF Correction Factor x 100 CF Max number of connectable indoor unit Total number of connected indoor unit 9k Additional Charge Calculation Example 1 Model Standard length m Max piping ...

Page 10: ...be 2 Put the end of the copper tube pipe in a downward direction as 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...

Page 11: ...the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit Inclined Inside is shiny without scratches Smooth all round Even length all round Surface damaged Cracked Uneven thickness Improper flaring Connection of piping Indoor Drain hose Drain hose Connecting pipe Connecting cable Tape Drain hose Connecting pipe Connecting cable Tape Drain hose CAUTION...

Page 12: ...ing portion 1 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 2 Wrap the area which accommodates the rear piping housing section with vinyl tape Insulate the connection pipe with an insulation material so that dripping from sweating condensation will not damage furniture or floors A minimum thic...

Page 13: ... left to right could cause problem of pipe damage Align the center of the piping and sufficiently tighten the flare nut by hand 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 h The figure may be slightly different according to the model Gas side piping Main...

Page 14: ...y 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 produced locally Torque wrench Drain hose Connect...

Page 15: ... gas pipe joints Insulator included with kit Insulator for field piping Tape field supply Liquid and gas pipe joints Insulation Insulation Insulation Insulation Tape field supply Tape field supply Tape field supply Tape field supply Branch 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 Instal...

Page 16: ... 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 50 50 50 50 56 50 38 36 Min 400 Min 30 600 Min 400 I...

Page 17: ...y procured to the hanging bolt as shown in the figure in the left and lift the main unit to hang on the hanger metal 4 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 CAUTIONS Once a screw hole on the main unit has had a screw hammered in make sure to either hammer it again or cover it with alumium tape...

Page 18: ...m 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 CAUTION Provide a circuit breaker between power source and the unit as shown below CAUTION The power cord connected to the outdoor unit should be complied with the f...

Page 19: ...lder for power supply cable CAUTION After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control cover 2 Firmly tighten the terminal screws to prevent them loosening After tightening pull the wires lightly...

Page 20: ... to connect the connection wires of indoor outdoor units to terminal board numbers 1 2 and 3 Always fix each ground wire separately with a ground screw See the figure below After completing the wiring fix the outer coating of wires securely with wire clamps The wire clamp on indoor unit side is furnished Follow the procedure below to install Refer to the circuit diagram on the control cover inside...

Page 21: ...he water flows through the drain hose of the indoor unit without any leakage 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 Accumulated drain water Tip of drain hose dipped in water Air Waving Water leakage Wat...

Page 22: ...connecting cable from down to up 2 Secure the tapped piping along the exterior wall using saddle or equivalent In cases where the Outdoor unit is installed above the Indoor unit perform the following 1 Tape the piping and connecting cable from down to up 2 Secure the taped piping along the exterior wall Form a trap to prevent water entering the room 3 Fix the piping onto the wall by saddle or equi...

Page 23: ... wait 3 5 minutes until residual electricity discharges 1 Open the top cover of outdoor unit 2 Select one of the two selectable modes as follows 3 Set the Zone as shown in Fig 4 Close the top cover and check whether the product works normally WARNING Do NOT open the top cover or set the pipe length while operating the product Installation Manual 23 1 ON 2 3 4 1 ON 2 3 4 1 ON 2 3 4 No limitation Pa...

Page 24: ...ylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P S I G Next test for leaks with liquid soa...

Page 25: ...alve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose 4 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 5 Replace the valve caps at both gas and ...

Page 26: ...Installation PI485 Installation PI485 Fix the PI485 PCB as shown in Fig Detailed installation method refer to PI485 Installation Manual 18kBtu h 26kBtu h 30kBtu h 26 Multi Air Conditioner ...

Page 27: ...48kBtu h 56kBtu h 40kBtu h Installation Manual 27 Installation PI485 ...

Page 28: ...rge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake temperature and the discharge is more than 8 C 4 For reference the gas side pressure of optimum condition is as below Cooling If the actual pressure are higher than shown the system is most likely over charged and charge should be removed ...

Page 29: ...tallation please contact LG Electronics for the additional anticorrosion treatment 2 Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Selecting the location Outdoor Unit 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opposite side of the sea...

Page 30: ...30 Multi Air Conditioner Memo ...

Page 31: ......

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