LG LS122CE Installation Manual Download Page 23

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Installation Manual 23

ENGLISH

Installation

Connecting the Piping

Connection Of The Cable

Indoor Unit

Outdoor Unit

To
branch
circuit

Ground

Power supply a

Connecting cable(Low voltage)

Terminal

(4P)

Terminal

(6P)

Outdoor unit

Wiring Diagram

Terminal block

Over 5mm

(0.2")

Cover control

Conduit panel

Connecting

cable

Power supply

cord

L1 is neutral for 115V models.

1. Remove the cover control from the unit by

loosening the 3 screws.

2. Dismount caps on the conduit panel.

3. Temporarily mount the conduit tubes on the

conduit panel.

4. Properly connect both the power supply and

low voltage lines to the corresponding
terminals on the terminal block.

5. Ground the unit in accordance with local

codes.

6. Be sure to size each wire allowing several

inches longer than the required length for
wiring.

7. Use lock nuts to secure the conduit tubes.

shows field wiring.

2. Separately wire the high and low voltage line.
3. Use heat-proof electrical wiring capable of

withstanding temperatures up to 167°F.

4. Use outdoor and waterproof connection cable

rated more than 300V for the connection between
indoor and outdoor unit.
(For example,Type STOW)

• Be sure to comply with local codes while

running the wire from the indoor unit to the

outdoor unit(size of wire and wiring method,

etc).

• Every wire must be connected firmly.

• No wire should be allowed to touch

refrigerant tubing, the compressor or any

moving parts.

Connector trade size for this unit is 1/2"

for instructions on connecting depending on

the wire type you are using.

WARNING

NOTE

Power Supply

Model

Power source

1ø, 115V

15A

12K

1ø, 115V

20A

18K

1ø, 230/208V

20A

24K

1ø, 230/208V

25A

AWG(MIN.)

Fuse or breaker

Capacity

NOTE

Summary of Contents for LS122CE

Page 1: ...fore installing the product When the power cord is damaged replacement should be performed by authorized personnel only 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 FRANÇAIS ESPAÑOL ...

Page 2: ...Checking The Drainage 25 Forming The Piping 26 Air Purging 27 Air Purging With Vacuum Pump 27 Charging 29 Test Running 30 Installation plate Four type A screws Connecting cable Pipes Suction line Evaporator line Refer to page 13 Insulation materials Additional drain pipe Outer Diameter 15 5mm 0 61in Two type B screws Installation Requirements Required Parts Required Tools Level gauge Screwdriver E...

Page 3: ...tallation Be sure not to do Be sure to follow the instruction Safety Precautions Do not use damaged power cords plugs or a loose socket There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center There is risk of fire or electric shock Always use the power plug and socket with the ground terminal There is risk of ele...

Page 4: ...f the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Install the indoor unit on the wall where the height from the floors more then 8ft 2 4m There are sharp moving parts that could cause personal injury Do not handle the pipe by yourself customer High Pressure refrigent may cause personal injury Use a dedicated outlet for this appl...

Page 5: ...y for the fresh air When flammable gas leaks turn off the gas and open a window for ventilation before turning the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire Unplug the unit if strange sounds odors or smoke comes from it There is risk of fireproduct failure and or electric shock Stop operation and close any window in storm or hurricane before ...

Page 6: ...he outdoor unit There could result in personal injury and product damage Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in There are sharp and moving parts that could cause personal injury Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electrical shock Unplug the appliance befor...

Page 7: ... Do not direct airflow at room occupants This could damage your health Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigeration system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh detergents s...

Page 8: ...serious health issues Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn or explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote if the batteries have leaked The chemicals in batteries could cause burns or other health hazards Use a firm stool or ladder when cleaning or maintaining ...

Page 9: ...ay cause harm to the air conditioner This symbol indicates special notes NOTICE Introduction Symbols Used In This Manual Features Air Intake Vents Air Outlet Vents Connecting Wires Piping Drain Hose Base Plate Air Outlet Vents Air Intake Vents Piping Connecting Wires Drain Hose Signal Receptor Base Plate Front Panel Air Inlet Air Filter ...

Page 10: ...tallation plate Figure Figure Name Screw driver Electric Drill Measuring Tape Knife Hole Core Drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas Leak Detector Thermometer Level Flaring Tool Set Name Installation Parts Installation Tools Installation Read carefully and then follow step by step ...

Page 11: ...st To carry out the drainage test remove the air filters and pour water into the heat exchanger Saddle Gas side piping Liquid side piping Additional drain pipe Drain Hose Base Plate Air Inlet Vents Connecting cable Installation Plate Sleeve Bushing Sleeve Putty Gum Type Sealer Bend the pipe as closely on the wall as possible but be careful that it doesn t break NOTICE NOTE refrigerant line wall th...

Page 12: ...omposition R 410A R32 R125 50 50wt NOTE Never mix with other refrigerants 4 High pressure 1 6 times higher than R 22 High Pressure refrigerant may cause personal injury Do not handle the pipe by yourself customer High pressure refrigerant may cause personal injury manifold gauge charging and any piping tools must be dedicated to R 410A systems NOTICE Confirm The Refrigerant 12 Room Air Conditioner...

Page 13: ...unit is installed on roof structures or walls this may result in excessive noise and vibration and may be also classed as non serviceable installation Indoor unit 1 Do not have any heat or steam near the unit 2 Select a place where there are no obstacles in front of the unit 3 Make sure that condensation drainage can be conveniently routed away 4 Do not install near a doorway 5 Ensure that the spa...

Page 14: ... Evap Max length A m ft Additional Refrigerant g m oz ft Max Elevation B m ft Standard Length m ft In case more than 5m 16 4ft Outdoor unit Indoor unit A B Outdoor unit Indoor unit A B A Oil trap Outdoor unit Indoor unit B 9k 3 8 1 4 7 5 25 7 5 25 15 49 20 0 22 1 2 1 4 7 5 25 7 5 25 15 49 20 0 22 12k 1 2 1 4 7 5 25 7 5 25 15 49 20 0 22 18k 1 2 1 4 7 5 25 15 49 30 98 20 0 22 5 8 1 4 7 5 25 7 5 25 1...

Page 15: ...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 How To Mount Installation Plate Chassis Hook Installation Plate Type A Installation plate Left rear piping Right rear piping Ø70mm Ø70mm D B A C Drill the piping hole with a ø70mm 2 76in hole core drill Drill the piping hole a...

Page 16: ... 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 Main cause for gas leakage is due to defect in flaring work Carry out correct flaring work in the following procedure mm inch mm inch Ø6 35 1 4 0 0 5...

Page 17: ...cting cable Be sure that the drain hose is located at the lowest side of the bundle Locating at the upper side can cause drain pan to overflow inside the unit NOTE If the drain hose is routed inside the room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended Indoor unit insta...

Page 18: ... area which accommodates the rear piping housing section with vinyl tape For right rear piping Connecting the pipings to the indoor unit and drain hose to drain pipe Put a couple drops of refrigerant oil on the face of the flare before assembling taking care not to add any contaminants Align the center of the pipings and sufficiently tighten the flare nut by hand Indoor unit tubing Flare nut Pipin...

Page 19: ...n plate Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Wrap the insulation material around the connecting portion Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material Bind them...

Page 20: ...s and the drain hose across the back of the chassis Drain hose Vinyl tape narrow Pipe Wrap with vinyl tape wide Bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section Piping for passage through piping hole Drain hose Connecting cable ...

Page 21: ... Installation Information For left piping Follow the instruction below Correct case Press on the upper side of clamp and unfold the tubing to downward slowly Incorrect case Following bending type from right to left may cause damage to the tubing ...

Page 22: ...ve the drain hose Securely insert both the rubber plug and drain hose into the drain outlets Be sure the rubber the cap is securely fastened so that there is no leakage 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 Outdoor unit Suction Line piping Bigger d...

Page 23: ...ing several inches longer than the required length for wiring 7 Use lock nuts to secure the conduit tubes 1 shows field wiring 2 Separately wire the high and low voltage line 3 Use heat proof electrical wiring capable of withstanding temperatures up to 167 F 4 Use outdoor and waterproof connection cable rated more than 300V for the connection between indoor and outdoor unit For example Type STOW B...

Page 24: ...wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 Confirm 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 Always install an GFCI circuit breaker i...

Page 25: ... any leakage and goes out the drain exit Drain piping The drain hose should point downward for easy drain flow Avoid these situations 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 Water leakage Ditch Less than 50mm gap Water leakage ...

Page 26: ...n hose and connecting cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent Taping Drain hose Pipings Connecting cable Trap is required to prevent water from entering into electrical parts Seal small openings around pipings with a gum type sealer In cases where the Outdoor unit is installed above the Indoor unit perform the following Tape the piping and ...

Page 27: ...as side service valves on the outdoor unit are kept closed at this stage Leak test Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses 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 soap Do a leak test of a...

Page 28: ...curely with an adjustable wrench This process is very important to prevent leakage from the system Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 1 Remove the caps from the gas side and liquid side valves 2 Remove the service port cap from the gas side valve 3 To open...

Page 29: ...et is used 5 additional ft X 0 22 ounce per foot add 1 1 ounces of R 410A Important If you are ever uncertain of the unit charge reclaim evacuate and weigh in the correct charge using the unit nameplate charge adjusting for line sets longer or shorter than 7 5m 25ft Confirm the refrigerant R 410A Use manifold gauge and hose for R 410A Pipe Size Capacity Btu h Suction Evap Max length A m ft Additio...

Page 30: ...e intake and discharge of air NOTE If the actual pressure are higher than shown the system is most likely over charged and charge should be removed If the actual pressure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use Bolt Tubing connection This is performed when the unit is to be relocated or the refrigerant circuit ...

Page 31: ...P No 3828A30087P ...

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