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P/NO : MFL40910604

INSTALLATION MANUAL

AIR CONDITIONER

• Please read this 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.

www.lg.com

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS

DEUTSCH

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Summary of Contents for UU24

Page 1: ...mpletely 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 www lg com ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH ...

Page 2: ...nning 35 Optional operation 37 Installation guide at seaside 42 Connecting cable Four Type A Screw Hanging Bolt W 3 8 or M10 length 650mm Pipes Gas side Liquid side Insulated drain hose Additional Drain hose Inner Dia Cassette type 32mm Duct type 25mm Additional drain pipe Convertible type Outer diameter 15 5mm Level Screw driver Electric drill Hole core drill ø70mm Flaring Tools set Torque Wrench...

Page 3: ...d a plug or a loose socket which is damaged Otherwise it may cause a fire or electrical shock For installation of the product always contact the service center or a professional installation agency Otherwise it may cause a fire electrical shock explosion or injury Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor unit If the electrical part cover of ...

Page 4: ...generation Do not use the damaged power cord Otherwise it may cause a fire or electrical shock Do not modify or extend the power cord randomly Otherwise it may cause a fire or electrical shock Take care so that the power cord may not be pulled during operation Otherwise it may cause a fire or electrical shock Unplug the unit if strange sounds smell or smoke comes from it Otherwise it may cause ele...

Page 5: ...ct Keep level parallel in installing the product Otherwise it may cause vibration or water leakage Avoid excessive cooling and perform ventilation sometimes Otherwise it may do harm to your health Use a soft cloth to clean Do not use wax thinner or a strong detergent The appearance of the air conditioner may deteriorate change color or develop surface flaws Do not use an appliance for special purp...

Page 6: ...ct type The place shall easily bear a load exceeding four times the indoor unit s weight The place shall be able to inspect the unit as the figure The place where the unit shall be leveled The place shall allow easy water drainage Suitable dimension H is necessary to get a slope to drain as figure The place shall easily connect with the outdoor unit The place where the unit is not affected by an e...

Page 7: ...ion is taken into consideration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling or other obstacles 2 Outdoor unit 1 If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the condenser is not restricted 2 Ensure that the spaces indicated by arrows around front back and side of the unit...

Page 8: ...levation B m Additional Diameter Ø refrigerant g m Oil trap Gas piping Liquid piping Outdoor unit Outdoor unit Indoor unit Indoor unit 15m Install trap at each difference in height 15m A trap is not necessary when the outdoor unit is installed in a higher position than the indoor unit CAUTION Rated performance for refrigerant line length of 7 5m Capacity is based on standard length and maximum all...

Page 9: ...e the following actions Make sure that ventilation fan is enough to cover all noxious gases from this place Ensure enough distance from the cooking room to install the air conditioner in such a place where it may not suck oily steam 2 Avoid installng air conditioner in such places where cooking oil or iron powder is generated 3 Avoid places where inflammable gas is generated 4 Avoid place where no...

Page 10: ...ling board along the outer edge of the paper model Flat washer for M10 accessory Hanging bolt W3 8 or M10 Nut W3 8 or M10 Nut W3 8 or M10 Spring washer M10 Air Conditioner body The Indoor Unit Installation The following parts is option Hanging Bolt W 3 8 or M10 Nut W 3 8 or M10 Spring Washer M10 Plate Washer M10 CAUTION Tighten the nut and bolt to prevent unit falling Drill the piping hole on the ...

Page 11: ...filter Accessory at air return hole Install the unit leaning to a drainage hole side as a figure for easy water drainage A place where the unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vibration A place where service can be easily performed CASE 1 POSITION OF SUSPENSION BOLT CASE 2 POSITION OF CONSOLE BOLT Unit mm A B C D E F G H I 30 36k...

Page 12: ...ng bolts Drill the hole for set anchor on the face of ceiling Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling Mount the suspension bolts to the set anchor firmly Secure the installation plates onto the suspension bolts adjust level roughly using nuts washers and spring washers Local supply Set anchor Plate washer M10 Spring washer M10 Nut ...

Page 13: ...ys lay the drain with downward inclination 1 50 to 1 100 Prevent any upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe Install the P Trap or U Trap to prevent a water leakage caused by the blocking of intake air filter Applied U Trap Dimension 1 Install declination of the indoor unit is very important for the drain of the du...

Page 14: ...de Inlet grill side 4 Hold the side cover with other hand while tapping to prevent it to fall down 5 The Drain hole is on the left side of the unit and side cover opening is common for drain pipe connecting pipe and wiring diagram 6 Remove the rubber stopple in the desired drain direction 7 Knock out the pipe hole from the left side cover with the help or nipper plier 8 Knock hole on right side co...

Page 15: ...tion of left right back forth by adjusting suspension bolts Adjust a level on the direction of top bottom by adjusting supension bolts Then the unit will be declined to the bottomside so as to drain well Suspension bolt B A Washer Nut Suspension bolts Ceiling Anchor nut Suspension bolts Spring washer Max 12mm Hangen Washer Nut Flat washer for M10 accessory Flat washer for M10 accessory Hanging bol...

Page 16: ...fig Ceiling Ceiling 10 20mm 5 10mm 1 Install declination of the indoor unit is very important for the drain of the convertible type air conditioner 2 Minimum thickness of the insulation for the connecting pipe shall be 10mm 3 If the Installation Plates are fixed to horizontal line the indoor unit after installing will be declined to the bottomside Front of view The unit must be horizontal or incli...

Page 17: ...ger screw on the both left and right side Detach the Inlet Grille from the Indoor Unit 1 Installation on the ceiling Measure and mark the position for the Suspension bolts and the piping hole Drill the hole for anchor nut on the ceiling Before secure the Installation Plates select the bent direction of the Installion Plate to the inside or the outside according to the installation circumstances Dr...

Page 18: ...2 hooks on the both left and right side of the unit to the lower slot of Installation Plates Adjust a level with a level gauge on the direction of left right back forth by adjusting suspension bolts Move the hooks on the unit to the upper slot of Installation Plates Then the unit will be declined to the bottomside so as to drain well Washer Nut Suspension bolts Ceiling Anchor nut Suspension bolts ...

Page 19: ...ioner 2 Minimum thickness of the insulation for the connecting pipe shall be 7mm 3 If the Installation Plates are fixed to horizontal line the indoor unit after installing will be declined to the bottomside The unit must be horizontal or declined to the drain hose connected when finished installation The unit must be declined to the bottomside of the unit when finished installation Side of view Fr...

Page 20: ...d washers Hook up the Inlet Grille Hook to the cabinet Hang the Inlet Hanger to the screw Fit the projection hooks of the side plates to the Side Panel and the Front Panel by lifting it Fasten the screws R R R 1 2 Before working refer to Connecting pipe to Indoor Unit on page 16 R Inlet hanger Hook Cabinet Bottom ...

Page 21: ...he hole for anchor nut on the wall Drill the piping hole on the wall slightly tilted to the outdoor side using a ø70 hole core drill Secure the Install Plate onto the wall with four anchor bolts washers and spring washers Before secure the Install Plates select the bent direction of the Install Plate to the inside or outside according to the installation circumstances 1076 more than 260 265 Washer...

Page 22: ... Installation Plate with four M8 bolts and washers Hook up the Inlet Grille Hook to the cabinet Hang the Inlet Hanger to the screw Fit the projection hooks of the side plates to the Side Panel and the Front Panel by lifting it Fasten the screws 22 Air Conditioner The Indoor Unit Installation R 2 1 Before working refer to Connecting pipe and cable to Indoor Unit on page 16 Inner slot ...

Page 23: ...nit onto the Mount Brackets Engage the slot at the back of the unit with Mount Bracket Drill the piping hole with 70mm dia hole core drill Piping hole should be slightly slant to the outdoor side After Installing reassemble detached parts Hang the Inlet Grille and hook the Inlet Hanger to the Hanger Screw Assemble the Side Plates R L with 2 screws on both left and right side Floor mount bracket Sl...

Page 24: ...the cover Slide it back into position Fix the under plate on the wall Separate the under plate from Remote control box Fix the cord clamps on the wall by ø 3 tapping screws accessory Fix the remote control cord DISASSEMBLING ELECTRICAL WIRING Wire and make sure that terminal numbers are matched on unit side and remote controller side The maximum length of the cord is 100m If the length of the cord...

Page 25: ...Ø Terminals on the Outdoor Unit 1 L 2 N 3 N T S R The power cord connected to the outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approved by HAR or SAA If the supply cord is damaged it must be replaced by a special cord or assembly available from the manufacturer or its service agent The connecting cable connected to the indoor and outdoor unit sho...

Page 26: ... the wires to the terminals on the control board individually as following 2 Secure the cable onto the control board with the holder clamper 3 Refix the cover control to the original position with the screw 4 Use a recongnized circuit breaker between the power source and the unit A disconnection device to adequately disconnect all supply lines must be fitted CAUTION The circuit diagram is not subj...

Page 27: ...to indoor and outdoor units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using dedicated flaring tool for R 410A as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 5 Check Compare the flared work with figure below If flare is noted to be defective cut off t...

Page 28: ... unit 4 After completing the piping connection be sure to check if there is gas leakage in indoor and outdoor connection After completing the piping connection execute vacuum drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the service ports of both the liquid and gas side valves CAUTION Use two wrenches and tighten with regular torque Outdoor unit L...

Page 29: ...ille including the air filter Decoration panel fixing screws hexagon M5 screws Temporally fitting at 2 places Tightening about 10mm Air conditioner unit Decoration panel Control box cover Piping side Louver motor Display Lead wire for louver motor and display Inlet Grille Decoration panel fixing screws Decoration panel fixing screws Hexagon M5 screw Hexagon M5 screw Decoration panel fixing screws ...

Page 30: ...tall the drain raising pipes at a right angle to the indoor unit and no more than 300mm from the unit Air conditioner unit Ceiling board Decorative panel Decorative panel Fit the insulator this part and be careful for cool air leakage Good example Air Cool air leakage no good Bad example Ceiling board Air conditioner unit Flexible drain hose Maintenance drain port Upward routing not allowed Pipe c...

Page 31: ...p operation Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operating and noise when electrical wiring is complete When the test is complete connect the flexible drain hose to the drain port on the indoor unit Feed water Drain Pump ...

Page 32: ...sing a kettle 2 Ensure the 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 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 Wat...

Page 33: ...ers that are located in ceiling atmosphere Indoor unit Thermal insulator accessory Fastening band accessory Refrigerant piping Heat insulation Forming the piping Form the piping by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tape If you want to connect an additional drain hose the end of the drain outlet should be routed above t...

Page 34: ...ping onto the wall by saddle or equivalent Settlement of outdoor unit 1 Anchor the outdoor unit with a bolt and nut ø10mm 0 39in tightly and horizontally on a concrete or rigid mount 2 When installing on the wall roof 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 un...

Page 35: ...asuring items are room temperature outside temperature suction temperature blow out temperature wind velocity wind volume voltage current presence of abnormal vibration and noise operating pressure piping temperature compressive pressure As to the structure and appearance check following items 2 Connection of power supply 1 Connect the power supply cord to the independent power supply Circuit brea...

Page 36: ...at more than 90 percent of the rated voltage marked on the name plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contac...

Page 37: ...f remote controller sensor 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally CAUTION Select the position after counselling with a customer In case of cooling mode room temperature is controlled by the main body sensor To control the room temperature by a wired remote controller install controller room temp sensor to sense the temperature more accurately ...

Page 38: ...e wired remote controller 3 Move the slide switch to the set position 4 Close the rear cover and check if it works normally Optional Operation Ceiling height Mode of slide switch Change of air volume Remark more than 3 3m High Ceiling Increasing 2 7 3 3m Standard Manufactured in less than 2 7m Low Ceiling Decreasing standard mode TH R14H SW TH REMO MAIN 2TH OP7 R18H R17H OP6 LO STAND SW HIGH HI R0...

Page 39: ...ing Fan speed doesn t vary according to the opening Closing of dampers 3 Position V L Minimum E S P setting Fan speed is varied according to the state of dampers by micom Maximum 24k 6mmAq Minimum 0mmAq 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally CAUTION Select the position after checking duct work and E S P of the unit Maunfactured in the position...

Page 40: ...Room Temp MED LO AUTO JET Heater Defrost Filter Humidify Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 3 4 FAN SPEED HI 2 Timer 1 2 3 5 4 Timer Procedure of RPM change Ex External Static pressure is 6mmAq for 36k To protect the unit compressor is designed to be off during E S P setting Push the On Off button The unit will start Push the Timer and Wind button simultaneousl...

Page 41: ...ir flow rate varies Static Pressure mmAq Setting Value 0 2 4 6 8 10 12 14 15 Model Name Step CMM CFM High 18 636 220 205 190 50 1 Med 16 5 583 235 230 220 200 100 Low 14 494 250 240 235 230 210 High 26 5 936 153 150 150 148 130 1 Med 23 812 173 173 175 175 170 155 Low 20 706 190 190 190 190 190 190 High 32 1130 230 230 225 220 150 1 Med 29 1024 240 238 237 235 230 220 Low 26 5 936 245 245 243 243 ...

Page 42: ...alled close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opposite side of the sea wind direction 2 In case to install the outdoor unit on the seaside set up a windbreak not to be exposed to the sea wind 3 Select a well drained place 1 If you can t meet above guide line in the seaside installation please contact LG Electronics for the additional a...

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