background image

ENGLISH

LG Room
Air Conditioner

INSTALLATION MANUAL

LG

MODELS: SF Chassis

website http://www.lgservice.com

IMPORTANT

• Please read this instruction manual completely before 

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.

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS

DEUTSCH

GREEK

Summary of Contents for SF Chassis

Page 1: ...re 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 ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH GREEK ...

Page 2: ...ming the piping 24 Air purging 25 Panel front assembly 27 Test running 28 Four type A screws plastic anchors Connecting cable Installation guide map Pipes Gas side 1 2 Liquid side 1 4 Refer to page 13 Insulation materials Additional drain pipe Outer diameter 15 5mm Two type B screws Level gauge Screw driver Electric drill Hole core drill ø50mm Horizontal meter Flaring tool set Specified torque wre...

Page 3: ... symbol indicates the possibility of injury or damage to properties only Be sure not to do Be sure to follow the instruction Safety Precautions Installation 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...

Page 4: ...the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furnishings Take care to ensure that power cords could not be pulled ...

Page 5: ...mable gas or combustibles near the air conditioner There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur Wax Thinner When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on DO NOT use the telephone or turn switches on or off There is risk of explosion or fire Unplug t...

Page 6: ...liance before performing cleaning or maintenance There is risk of electrical shock When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage Always check ...

Page 7: ...ct airflow at room occupants Don t sit in the draft 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 d...

Page 8: ...not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the air conditioner Be careful and avoid personal injury 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 batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispo...

Page 9: ...rts you to hazards that may cause harm to the air conditioner This symbol indicates special notes NOTICE Introduction Symbols used in this Manual Features Signal Receptor Front Panel Air Discharge Air Intake Vents Air Outlet Vents Power Cord Connecting Wires Piping Drain Hose Base Plate Air Filter Plasma Filter ...

Page 10: ...tion guide map Figure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Leak detector Thermometer Horizontal meter Flaring tool set Name Installation Parts Installation Tools Installation Read carefully and then follow step by step ...

Page 11: ...ype Sealer Vinyl tape Wide To carry out the drainage test remove the air filter and pour water into the heat exchanger Apply after carrying out a drainage test Saddle More than 20cm More than 50cm Gas side piping Optional part Liquid side piping Optional part Additional drain pipe Vinyl tape Narrow Connecting cable Optional part Bend the pipe as close as possible on the wall but be careful so that...

Page 12: ...ver the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted 2 Ensure that the space around the back and sides is more than 30cm The front of the unit should have more than 70cm of space 3 Do not place animals and plants in the path of the warm air 4 Take the weight of the air conditioner into account and select a place where noise and...

Page 13: ...D Max Length A m Additional Refrigerant g m Max Elevation B m Standard Length m Outdoor unit Indoor unit A B Outdoor unit Indoor unit A B A Oil trap Outdoor unit Indoor unit B If piping length is more than 5m CAUTION Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 5 7 meters ...

Page 14: ... Pull up the side cover of desired connecting direction then cover side is separated 3 Pick the pipe hole of the side cover CAUTION After removing the pipe hole cut the burr for safety When making pipe path through rear wall you don t need to pick the pipe hole NOTICE Drain hose junction 1 Remove the rubber stopple in the desired drain direction 2 Insert drain hose into the handle of drain pan and...

Page 15: ...astic anchors into drilled points 7 Hang the hole of product at the upper screws and remove the map Falling attention 9 Check the fixed product with light power 1 Attach an Installation guide map on the desired surface 2 Look at suited horizon by horizontal meter on the horizontal setting line and fix lightly the map by adhesive tape 4 Drill the pierted part as a diameter of 50mm for connecting pi...

Page 16: ...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 1 Firmly hold copper pipe in a die in the dimension shown in the table below 2 C...

Page 17: ... not damage furniture or floors Foamed polyethylene or equivalent is recommended 1 Route the indoor tubing and the drain hose in the direction of rear left or right 2 Tape the tubing drain hose and the connecting 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 Inclined Inside is shiny without s...

Page 18: ...her with vinyl tape so that there may be no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape 3 Bundle the piping and drain hose together by wrapping them with vinyl tape over the range within which they fit into the rear piping housing section Indoor unit tubing Flare nut Pipings Torque wrench Indoor unit tubing Spanner fixed Connection pipe Flare nut mm inch ...

Page 19: ...CAUTION Installation Information For right piping Follow the instruction below Good case Press on the upper side of clamp and unfold the tubing to downward slowly Bad case Following bending type from left to right may cause damage to the turbing ...

Page 20: ...nch until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench mm inch kgf m Ø6 35 1 4 1 8 2 5 Ø9 52 3 8 3 4 4 2 Ø12 7 1 2 5 5 6 6 Ø15 88 5 8 6 3 8 2 Ø19 05 3 4 9 9 12 1 Outside diameter Torque Gas side piping Bigger diameter Torque wrench Liquid side piping Smaller diameter Outdoor unit ...

Page 21: ...een power source and the unit as shown by CAUTION The power cord connected to the A unit should be selected according to the following specifications Type B approved by HAR or SAA The power connecting cable connecting the indoor and outdoor unit should be selected according to the following specifications Type B approved by HAR or SAA Air Conditioner Main power source Circuit Breaker Use a circuit...

Page 22: ...of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See ...

Page 23: ... 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 like the following 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 24: ...n hose and 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 sad...

Page 25: ...auges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for air purging 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 tes...

Page 26: ...he Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve 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 t...

Page 27: ...fix the power cord in the bottom groove of cover side left 2 Assemble connecting lead wire with controller fix the upper part of panel front and match the lower part of panel front 3 Screw up panel front and suspend the hook of panel front in the groove Panel Front Connector Panel Front Assembly ...

Page 28: ...oof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake 3 If the vibration of the unit is transmitted to the hose secure the unit with an anti vibration rubber Evaluation of the performance Operate the unit for 15 20 minutes then check the system refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperat...

Page 29: ...efrigerant CAUTION Be sure to perform Pump Down procedure in the cooling mode Pump Down Procedure 1 Connect a low pressure gauge manifold hose to the charge port on the gas side service valve 2 Open the gas side service valve halfway and purge the air in the manifold hose using the refrigerant 3 Close the liquid side service valve all the way 4 Turn on the unit s operating switch and start the coo...

Page 30: ...30 Room Air Conditioner Memo ...

Page 31: ...P No 3828A22231A ...

Reviews: