AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. TYPE : LOW STATIC HIDE AWAY TYPE AIR CONDITIONER For single duct low static models MFL62760203 CALL CENTER 1800-180-3575 CALL (Toll Free) CLICK www.lg.com/in/support cac.service@lgepartner.com www.facebook.com/lgindiapage www.twitter.com/LGIndiaTweets To know more about LG, visit www.lg.com For Corporate/Instutional enquiries, please write to enquiries@lgindia.com Regd. Office : LG Electronics India Pvt. Ltd., A Wing (3rd Floor), D-3, District Center, Saket, New Delhi - 110017 Low Static Hide Away Type Air Conditioner Owner's Manual TABLE OF CONTENTS F or Your Records Write the model and serial numbers here: Model # Page no. 1. Safety Precautions 3 2. Operating Instructions 6 3. Care and Maintenance 18 4. Before you call for service 21 Serial # You can find them on a label on the side of each unit. Dealer's Name Date Purchased R ead This Manual Inside you will find many helpful hints on how to use and maintain your air conditioner properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner. You'll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of Troubleshooting Tips first, you may not need to call for service at all. CAUTION • Contact the authorized service technician for repair or maintenance of this unit. • Contact the installer for installation of this unit. • The air conditioner is not intended for use by young children or invalids without supervision. • Young children should be supervised to ensure that they do not play with the air conditioner. • When the power cord is to be replaced, replacement work shall be performed by authorized personnel only. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. 2 Safety Precautions Precautions To prevent injury and property damage, follow these instructions. Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness of which is indicated by the following symbols. WARNING This symbol shows the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage to property. Never Do This Always Do This Installation precautions WARNING WARNING n Do not install, remove and reinstall the unit by yourself. • Improper installation will cause water leakage, electrical shock, or fire. Please consult authorized dealer or specialist for the installation work. Please note fault caused by improper installation is not covered by warranty. • Unit must be installed in an easily accessible area. Any additional cost required to hire a special equipment to service the unit will be the responsibility of the customer. WARNING WARNING Do not damage or use an unspecified power cord. Do not operate switches with wet hands. • It will cause electrical shock or fire. • It may cause electrical shock. • If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard. Do not operate or stop the unit by inserting or pulling out the power plug. • It will cause electrical shock or fire due to heat generation. Do not insert your finger or stick, etc. into the air inlet/air outlet. • Since the fan rotates at high speed, this may cause an injury or damage the unit. When an abnormality (smell of burning, etc) occurs, stop the air conditioner, and turn off the breaker. Plug in the power plug properly. • Otherwise, it will cause electrical shock or fire due to heat generation. Do not expose the skin to cool air directly for a long time. • This could damage your health. Repair or relocation should not be done by the customer. • If the unit continues to be operated in an abnormal condition, it may cause a fire, trouble, etc. In this case, consult your dealer. • If this is done in correctly, it may cause a fire, electric shock, injury by dropping of the unit, water leakage, etc. Consult your dealer. 3 CAUTION CAUTION • Contact the authorized Service technician for repair or maintenance of this unit. • Contact the installer for installation of this unit. • The air conditioner is not intended for use by young children or infirm persons without supervision. • Young children should be supervised to ensure that they do not play with the air conditioner. CAUTION CAUTION Do not clean the air conditioner with water. Ventilate well when used together with a stove, etc. l Water may enter the unit and degrade the insulation. It may cause an electric shock. l An oxygen shortage may occur. Do not put a stove, etc. where is exposed to direct air flow. l It may cause imperfect combustion. Do not operate for a long time in high humidity, e.g. leaving a door or window open. l In the cooling mode, if it is operated in a room with high humidity (80%r.h. or more) for a long time, water condensed in the air conditioner may drop and may wet and spoil furniture, etc. If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent. l If will cause electrical shock or fire. When the unit is not going to be used for a long time, turn off the breaker. l It may cause an injury. Do not step onto an unstable bench when attaching/detaching the panel. l It may case an injury, etc. by falling down. When the air filter is to be removed, do not touch the metal parts of the indoor unit. l It may cause an injury. 4 When the unit is to be cleaned, switch off, and turn off the breaker. l Since the fan rotates at high speed during operation, it may cause an injury. Do not step on the outdoor unit and do not put anything on it. l It may cause an injury through dropping or falling down. Do not use for special purposes. l Do not use this air conditioner to preserve precision devices, food, animal, plants and art objects. It may cause deterioration of quality, etc. Wide LCD Wired Remote Controller (Optional) 5 8. Operating Instructions A) Indoor Unit, Outdoor Unit Wired Remote Controller (Optional) LG COMP TIMER POWER FILTER ON/OFF Wireless Remote Receiver & Controller (Standard) LG 6 5 COMP POWER TIMER FILTER 4 3 2 1 ON/OFF Operation Indication Lamps 1 2 3 4 5 6 Signal Recepter Forced Operation : Use the ON/OFF button when remote control is not available. Signal Receptor : Receives the signal from remote control (signal receiving sound: one long beep) FILTER SIGN : Lights up after 240 hours from the time of first power on operation. TIMER ON/OFF COMP Part Function SW LED : Lights up during timer operation. : Lights up during system operation. : Lights up during outdoor operation (i.e. when compressor switch on) Before After Error Display -Operation LED –1st digit error # Error COMP Power -Clean filter LED –10 th digit error # Error -Reservation LED – 100th digit error # Error -Comp LED – LED OFF Timer Filter Display flash control st th th -Errordisplay order : Repeat 1 digit # à 10 digit # à 100 digit # display -Central Controller address display order : Repeat Indoor unit # à Group # display - Repeat 0.5s OFF + 0.5s ON Toggle in 1s cycle -1 cycle OFF after # display is completed Ex) When CH121 is displayed 0.5s 6 Outdoor Unit Air Intake (side, rear) Connecting Wire Power Wire Air Outlet Vents Connection Tube Drain Hose Cooling model: Low static Type Air Conditioner for cooling B) Remote Control Preparation 7 C) Remote Control Operations Operation Mode Cooling Mode Auto Operation Mode Dehumidification mode Fan Mode 8 Installer Setting - How to enter installer setting mode 9 Installer Setting - Installer Setting Code Table 10 Installer Setting - Setting Address of Central Control 11 Cooling Mode 12 Auto Operation Mode 13 Dehumidification Mode 14 Fan Mode 15 Temperature Setting/Room Temperature Checking 16 Timer Error Diagnosis Sr. No. ERROR CODE DIAGNOSIS DESCRIPTION 1 CH-01 Check room thermistor Recover after 5 seconds of operation when respective thermistor healthy 2 CH-02 Check pipe thermistor (CN-Pipe/In) Recover after 3 seconds of operation when respective thermistor healthy 3 CH-04 Check float sensor / Jumper Recover after 4 minutes of operation when float sensor / Jumper healthy 4 CH-05 Check Dipswitch comm (Yes/No) Check Dipswitch setting and Power Reset 5 CH-09 Check Option PCB (EPROM) Check Interconnection of Option PCB and Power Reset 17 Care and maintenance Care and maintenance Caution: Before performing any maintenance, turn off the main power to the system. Indoor Unit q Never use any of the followings: • Water hotter than 40°C Could cause deformation and/or discoloration. • Volatile substances Could damage the surfaces of the air conditioner. Grille, Case, and Remote Control q Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. Note: Supply power must be disconnected before cleaning the indoor unit. SI Be N NE R n z e ne S CO U RIN G C LB A R GER 1 Clean the filter with a vacuum or warm, soapy water. • If very dirty, wash with a solution of detergent in lukewarm water. • If hot water (50°C or more) is used, filter may be deformed. 2 After washing with water, dry well in the shade. 3 Re-install the air filter. Air Filter The air filters behind Indoor unit (the suction side) should be checked and cleaned once every 2 weeks or more often if necessary. E C D B A J G Indoor Unit Dimensions (mm) (Unit:mm) Dimension A B C D E F 18 / 24 BTU/h 1130 1180 383 575 93 190 G H I J I F Capacity(Btu/h) 21 1065 163 1100 H Drainage hole 18 Drain Pump use Outdoor Unit The heat exchanger coils and panel vents of the outdoor unit should be checked regularly. If clogged with dirt or soot, the heat exchanger and panel vents may be professionally steam cleaned. Note: Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs. OutdoorUnit Unit Outdoor D (Rear) H (Side) (Side) W Air intake vents Control Cover Connecting Wire Air outlet vents Connection Pipe Drain Hose L1 (Rear) Air intake vents Control Cover Connecting Wire Air outlet vents Connection Pipe Drain Hose L2 L1 L2 Indoor Unit D W H Model Capacity LB-B2156QC / LB-B2156QC2 LB-B2206QC / LB-B2206QC2 JB-Q24GB2A0 1.5TR 2TR 2TR W 1180 1180 1180 JB-Q18GB2A0 1.5TR 1180 Indoor dimension D H 575 190 575 190 575 190 575 190 19 W 800 800 800 D 260 260 260 800 260 Outdoor Dimnesion H L1 555 590 555 590 555 590 555 590 L2 305 305 305 305 When the air conditioner is not going to be used for a long time. When the air conditioner is to be used again. When it is not going to be used for a long time. 1 n Check that the air inlet and outlet of the indoor/outdoor unit are not blocked. Operate the air conditioner on Air circulation mode (Refer to page 15) for 2 to 3 hours. • This will dry out the internal parts. 2 Turn off the circuit breaker. Helpful information CAUTION CAUTION The air filters and your electiric bill. If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to operate the air conditioner will be wasted. Turn off the circuit breaker when the air conditioner is not going to be used for a long time. Dirt may collect and may cause a fire. Operation Tips Do not overcool the room. This is not good for the health and wastes electricity. Clean the air filter regularly. Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks. Keep blinds or curtains closed. Make sure that the doors and windows are shut tight. Do not let direct sunshine enter the room when the air conditioner is in operation. Avoid opening doors and windows as much as possible to keep the cool air in the room. Ventilate the room occasionally. Since windows are kept closed, it is a good idea to open them and ventilate the room now and then. 20 Troubleshooting Tips Before you call for service... Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer. Case Explanation Have you made a mistake in timer operation? On first starting, the indoor unit operates in fifteen seconds. l Has the fuse blown or has the circuit breaker been tripped? l Check power supply for single/reverse phase, voltage imbalance. l Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room. l Condensation occurs when the airflow from the air conditioner cools the warm room air. l This is the protector of the mechanism. l Wait about three minutes and operation will begin. l Is the air filter dirty? See air filter cleaning instructions. l The room may have been very hot when the room air conditioner was first turned on. Allow time for it to cool down. l Has the setting temperature been set incorrectly? l Are the indoor unit's air inlet or outlet vents obstructed? l For a noise that sounds like water flowing. -This is the sound of freon flowing inside the air conditioner unit. l For a noise that sounds like the compressed air releasing into atmosphere. -This is the sound of the dehumidifying water being processed inside the air conditioning unit. l This sound is generated by the expansion/contraction of the inlet grille, etc. due to changes of temperature. l Has the circuit breaker been tripped? The air conditioner does not operate. l l The room has a peculiar odor. It seems that condensate is leaking from the air Conditioner. Air conditioner does not operate for about 3 minutes when restart. Does not cool or heat effectively. The air conditioner operation is noisy. Crack sound is heard. Remote control display is faint, or no display at all. NOTE WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT. The indoor side is not water resistant and should not be exposed to excess water. 21 Installer Setting - Setting Address of Central Control 27 Installer Setting - Installer Setting Code Table 26 Installer Setting - How to enter installer setting mode 25 C) Remote Control Operations Operation Mode Cooling Mode Auto Operation Mode Dehumidification mode Fan Mode 24 Outdoor Unit Air Intake (side, rear) Connecting Wire Power Wire Air Outlet Vents Connection Tube Drain Hose Cooling model: Low static Type Air Conditioner for cooling B) Remote Control Preparation 23 8. Operating Instructions A) Indoor Unit, Outdoor Unit Wired Remote Controller (Optional) LG FILTER TIMER POWER COMP ON/OFF Wireless Remote Receiver & Controller (Standard) LG 6 COMP 5 POWER 4 3 TIMER FILTER 2 1 ON/OFF Signal Recepter Operation Indication Lamps TIMER ON/OFF COMP 6 FILTER SIGN 3 Forced Operation : Use the ON/OFF button when remote control is not available. Signal Receptor : Receives the signal from remote control (signal receiving sound: one long beep) 2 1 4 5 LED SW Function Part : Lights up after 240 hours from the time of first power on operation. : Lights up during timer operation. : Lights up during system operation. : Lights up during outdoor operation (i.e. when compressor switch on) Before After Error Display -Operation LED –1st digit error # Error COMP Power -Clean filter LED –10 th digit error # Error -Reservation LED – 100th digit error # Error -Comp LED – LED OFF Timer Filter Display flash control -Errordisplay order : Repeat 1st digit # à 10 th digit # à 100th digit # display -Central Controller address display order : Repeat Indoor unit # à Group # display - Repeat 0.5s OFF + 0.5s ON Toggle in 1s cycle -1 cycle OFF after # display is completed Ex) When CH121 is displayed 0.5s 22 7. Air Purging of the Connecting Pipes and the Indoor Unit The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. 1. Confirm that both the liquid side valve and the gas side valve are set to the closed position. 2. After connecting the piping, check the joints for gas leakage with gas leak detector. 3. Remove the service port nut, and connect the gauge manifold and the vacuum pump to the service port by the charge hose. 4. Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg. 5. Remove the valve stem nuts, and fully open the stems of the 2-way and 3-way valves with a hexagon wrench. 6. Tighten the valve stem nuts of the 2-way valve and 3-way valve. 7. Disconnect the charge hose and fit the nut to the service port. (Tightening torque: 1.8kg.m) Indoor unit Liquid side Closed 2-way valve/ 3-way valve Outdoor unit Gas side 3-way valve Closed Vaccum pump OPEN CLOSE 21 >> Piping Routine 1. Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands. (for the right pipings) • If you want to connect an additional drain hose, the end of the drain-outlet should keep distance from the ground. (Do not dip it into water, and fix it on the wall to avoid swinging in the wind.) Seal a small opening around the pipings with gum type sealer. Drain hose Taping In case of the Outdoor unit being installed below position of the Indoor unit. 2. Tape the Pipings, drain hose and Connecting Cable from bottom to top. Pipings Connecting cable 3. Form the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent. Power supply cord Trap is required to prevent water from entering into electrical parts. In case of the Outdoor Unit being installed above position of the Indoor Unit. Seal a small opening around the pipings with gum type sealer. 2. Tape the Pipings and Connecting cable from bottom to top. Trap 3. Form the pipings gathered by taping along the exterior wall, and make the trap prevent water from entering into the room. 4. Fix the pipings onto the wall by saddle or equivalent. 20 C) Outdoor Wiring Routine and Pipe Routine 1. Remove the Cover control from the unit by loosening a screw. Connect the wires to the terminals on the control board individually as following. Outdoor unit Terminal block Cord Clamper 2. Secure the cable onto the control board with the holder (clamper). 3. Refix the cover control to the original position with the screw. Over 5mm Cover control Power supply cord CAUTION After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover. 2) Provide a circuit breaker switch between power source and the unit. 3) 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 give rise to burn-out of the wires.) 4) Specification of power source 5) Confirm that electrical capacity is sufficient. 6) Be sure that the starting voltage is maintained 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 contact point there of, fuse breaking, disturbance to the normal function of a overload protection device. • Proper starting power is not given to the compressor. 19 Connecting Cables between Indoor and Outdoor Unit 18/24K BTU/h Applied Model:- LB-B2156QC, LB-B2156QC2, LB-B2206QC, LB-B2206QC2, JB-Q24GB2A0, JB-Q18GB2A0 1) Connecting cables to the Indoor Unit Connect the wires to the terminals on the control board individually according to the outdoor unit connection. Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit respectively l 1) Input 1-phase power supply into outdoor & wire specification. Outdoor terminal block Wire specification. 1 2 GND Model LB-B2156QC / LB-B2156QC2 LB-B2206QC / LB-B2206QC2 JB-Q24GB2A0 JB-Q18GB2A0 Capacity 1.5 tr 2 TR 2 TR 1.5 TR 1 Phase mm2 * core 2.5 mm2*3 2.5 mm2*3 2.5 mm2*3 2.5 mm2*3 L N GND 2) For connection between of Indoor and Outdoor unit & wire specifiacation A) LB-B2156QC, LB-B2156QC2, LB-B2206QC, B) JB-Q24GB2A0, JB-Q18GB2A0 LB-B2206QC2 Indoor terminal block 1 2 3 GND 1 BR RD BK 4 Outdoor terminal block 5 GND 2 BL 3 RD BR 6 6 GND 7 8 Note : GND = Ground Earthing Wire specification. Model Capacity LB-B2156QC/LB-B2156QC2 LB-B2206QC/LB-B2206QC2 JB-Q24GB2A0 JB-Q18GB2A0 1 Phase 1.5 tr 2 TR 2 TR 1.5 TR 1.5 mm2 1.5 mm2 0.75 mm2 0.75 mm2 No of core 4 4 4 4 CAUTION The power cord connected to the outdoor unit should be The connecting cable connected to the indoor and outdoor with the following specifications unit should be with the following specifications NORMAL CROSS-SECTIONAL AREA Capacity 18/24 K BTU/h GN /YL 1 Phase 2.5mm2 NORMAL CROSS-SECTIONAL AREA 1.25mm 2 (18/24K) GN D 20 20 mm mm If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer of its service agent. WARNING Make sure that the screws of the terminal are free from looseness. 2) Clamping of cables 1) Arrange 2 power cables on the control panel. 2) First, fasten the steel clamp with a screw to the inner boss of control panel. 3) For the cooling model, fix the other side of the clamp with a screw strongly. 18 B) Wiring Diagram Indoor Wiring Diagram : Model : LB-B2156QC / LB-B2156QC2 / LB-B2206QC / LB-B2206QC2 / (R-22 Gas Charge Model) NOTE : Connect IR PCB Assy. at CN-DISP of PCB Assy. Model : JB-Q24GB2A0 JB-Q18GB2A0 EBY61848204 Outdoor Wiring Diagram : Model : LB-B2156QC / LB-B2156QC2 / LB-B2206QC / LB-B2206QC2 / (R-22 Gas Charge Model) RD BK OUTDOOR WIRING DIAGRAM 2 4 Power 6 Relay 8 0 1 GR/YL RD Out Motor YL BK BL GR BK BR RD BK S RD C COMP WH 5 L N Model : JB-Q24GB2A0 / JB-Q18GB2A0 / (R-410A Gas Charge Model) R H T/B 4 1(L) 2(N) L N E 6 S RD BK C F INPUT MAINS/SUPPLY TO FROM (1ø,230V) INDOOR INDOOR 3854A20298U MEZ65795005 17 6). Connecting Cable between Indoor and Outdoor Unit Perform the electrical wiring work according to the electrical wiring connection. A) Circuit Breaker Detail • All wiring must comply with local requirements. • Select a power source that is capable of supplying the current required by the air conditioner. • Use a recognized circuit breaker between the power source and the unit. A disconnection device to adequately disconnect all supply lines must be fitted. Main power source Circuit Breaker Switch box Outdoor Indoor • Capacity of circuit breaker Circuit Breaker Model LB-B2156QC/LB-B2156QC2 LB-B2206QC/LB-B2206QC2 JB-Q24GB2A0 JB-Q18GB2A0 Capacity 1.5 TR 2 TR 2 TR 1.5 TR 1 Phase 25 25 25 25 Main power source Indoor Circuit Breaker Outdoor • Warranty will be null & void if wiring is not as per installation instructions. 16 Installation of IR Remote Sensor 1. Connect the IR sensor cable to the CN-DISPLAY connector of main PCB Assy. The IR sensor cable is connected as factory default. 2. Fix the rear side of the installation board with the screw. <Front side of installation board> <Rear side of installation board> Guide slot Fixate the IR Remote Sensor cable to the guide slot. 3. Now attach the IR PCB Assy at the rear side of installation board. Use the screws for fixate the unit firmly on the wall. Wall Side Installation board Bottom Wall Side When disassemble the IR remote sensor from the installation board, use the driver as shown in the right picture and insert it into the hole with the arrow. And when you pull the driver in the front direction, the IR remote sensor will be separated. Wall Side Wall Side Wall Side Do not install the cable to be 10m or above. (It can cause communication error.) • When installing the extension cable, check the connecting direction of the connector of the IR remote sensor side and the product side for correct installation. • If you install the extension cable in the opposite direction, the connector will not be connected. • Specification of extension cable: AWG 26 (2sim 7shield) or above 15 4. Connecting Pipes to the Outdoor Unit 1) Connecting the pipes to the Outdoor unit 1. Align the center of the pipingsand sufficiently tighten the flare nut with fingers. 2. Finally, tightenthe flare nut with torque wrenchuntilthe wrenchclicks. • When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench. 6.6kg.m 3/4" 6.6kg.m 5/8" 5.5kg.m 1/2" 4.2kg.m 3/8" 1.8kg.m 1/4" Torque Pipe size Outdoor unit Gas side piping (Bigger Dia.) Liquid side piping (Smaller Dia.) Torque wrench 5. IR Remote Sensor Installation & Operation • Install the IR remote sensor about 6 feet above the floor in an area with good air circulation at an average temperature. Do not install the IR remote sensor where it can be affected by: - Drafts, or dead spots behind doors and in corners. - Hot or cold air from ducts. - Radiant heat from sun or appliances. - Concealed pipes and chimneys. TEMP - Uncontrolled areas such as an outside wall behind the remote controller. - This IR remote sensor is equipped with LED display and ON/OFF button. For proper display of the IR remote sensor The IR remote sensor should be installed properly as shown in Fig.1. (The standard height is 6 feet from floor level.) Remote Controller yes yes-Optional LG no TEMP FILTER TIMER POWER COMP Remote Controller ON/OFF no 6feet TEMP Controller Remote no Fig.1 Typical locations for IR Remote Sensor 14 6) Pipe bending Annealed copper pipe with small diameter (ø6.35 or ø9.52) can be easily bent manually. In this case, secure large R(radius) for the bend section and gradually bend pipe. If annealed copper pipe is large in diameter (ø12.7, ø15.88 or ø19.05), bend pipe with bender. Use bender appropriate for the pipe diameter. 7) Brazing In refrigerant piping, bending (in particular, acute bending) must be minimized to reduce piping resistance. Bending is, however, necessary in some places by virtue of the installation position of devices or of the building structure, piping distance or finishing appearance. Perform brazing using ready-made elbow. Aside from this function, brazing perform brazing using ready-made elbow. Aside from this function, brazing also serves to connect straight pipes, generally using ready-made sockets. While brazing, protect piping against heat with wet cloth to avoid damaging valve packing or burning thermal insulator with burner heat. While brazing, blow inert gas (nitrogen gas or carbonic gas) to prevent formation of oxidation film in copper piping; otherwise, the refrigerant circuit will clog. The blowing of nitrogen gas (or carbonic gas) through 3-way valves is described in the following: 8) Refrigerant piping(Flare piping) When connecting piping, be sure to keep piping dry(keep piping away from water), clean (keep piping away from dust) and airtight (avoid refrigerant leakage). When connecting piping on rainy days or making a through-hole in wall, take due care to prevent water or plaster from entering piping. CAUTION a. This procedure is designed to prevent formation of oxidation film by filling piping with inert gas. Note that excessive gas pressure will generate pinholes at brazed points. (Nitrogen gas: Supply pressure 0.05~0.1kg/cm2G) b. When supplying inert gas, be sure to open one end of piping. Water enters Plaster enters 13 3. Connecting Pipes to the Indoor Unit 3-1. Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Copper tube 90 Slanted Uneven Rough 1) Cut the pipes and the cable. Use the accessory piping kit or the pipes purchased locally. Measure the distance between the indoor and the outdoor unit. Cut the pipes a little longer than measured distance. Cut the cable 1.5m longer than the pipe length. Pipe Reamer Point down 2) Burrs removal Completely remove all burrs from the cut cross section of pipe/tube. Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing. Flare nut Copper tube 3) Putting nut on Remove flare nuts attached 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 flaring tool as shown below. Outside Diameter 1/4" 3/8" 1/2" 5/8" 3/4" "A" 0~0.5 0.5~0.8 0.5~0.8 0.8~1.0 1.0~1.3 Handle Bar Bar "A" Yoke Cone Copper pipe Clamp handle Red arrow mark Smooth all round Inside is shining without scratches. Firmly hold copper tube in a bar(or die) as indicated dimension in the table above. = Improper flaring = 5) Check Compare the flared work with figure. If flare is noted to be defective, cut off the flared section and do flaring work again. Inclined Surface Cracked Uneven damaged thickness Even length all round 12 >>Outdoor unit space requirement. •If an awning is built over the unit to prevent direct sunlight or rain exposure, be careful that heat radiation from t he condenser is not restricted. • There should not be any animals or plants which could be aff ected by hot air discharged. • Ensure the spaces indicated by arrows from the w all, ceiling, fence or other obstacles. Su nr oof More than 50cm 10cm Fe o nc b stae or cle s More than 50cm More than 100cm >>Piping length and the elevation Capacity Model 1.5 TR LB-B2156QC/LB-B2156QC2 2 TR LB-B2206QC/LB-B2206QC2 2 TR JB-Q24GB2A0 JB-Q18GB2A0 1.5 TR Pipi Sizes ( Dia In Inch) Gas Liquid 1/2" 1/4" 5/8" 1/4" 5/8" 3/8" 1/2" 1/4" Length(A meter) standard Max 7.5 30 7.5 30 7.5 50 7.5 30 Elevation(B meter) standard Max 5 15 5 15 5 30 5 15 Additional Gas Charge R-22 15g/m R-22 20g/m R-410 20g/m R-410 15g/m • Capacity is based on standard length and maximum allowance length is on the basis of reliability . • Oil trap should be installed every 5 meters. • If 18K model is installed at a distance of 15m, 150g of refrigerant should be added [(15-5) x 15g = 150g]. Indoor unit Factory charged gas Flared connection (union) A B Use seamless pipe Outdoor Outdoor unit U-Trap Indoor unit Indoor B B Flared connections (Service valves) A A Outdoor unit 11 F). Outdoor Unit best location & piping. The heat exchanger coils and panel vents of the outdoor unit should be checked regularly. If clogged with dirt or soot, the heat exchanger and panel vents may be professionally steam cleaned. Note: Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs. OutdoorUnit Unit Outdoor (Side) D (Side) H (Rear) (Rear) W Air intake vents Control Cover Connecting Wire Air outlet vents Connection Pipe Drain Hose Air intake vents Control Cover Connecting Wire Air outlet vents L2 L1 Connection Pipe Drain Hose L1 L2 Indoor Unit D W H Model Capacity 1180 1.5TR JB-Q18GB2A0 W 1180 1180 1180 1.5TR 2TR 2TR LB-B2156QC / LB-B2156QC2 LB-B2206QC / LB-B2206QC2 JB-Q24GB2A0 Indoor dimension D H 575 190 575 190 575 190 575 190 W 800 800 800 D 260 260 260 800 Outdoor Dimnesion H L1 555 590 555 590 555 590 260 555 L2 305 305 305 590 305 10 Care and maintenance Caution: Before performing any maintenance, turn off the main power to the system. Indoor Unit Grille, Case, and Remote Control q Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. Note: Supply power must be disconnected before cleaning the indoor unit. q Never use any of the followings: • Water hotter than 40°C Could cause deformation and/or discoloration. • Volatile substances Could damage the surfaces of the air conditioner. SI B en 1 Air Filter The air filters behind Indoor unit (the suction side) should be checked and cleaned once every 2 weeks or more often if necessary. N NER z e ne SCO U RI N G C LB A R G ER Clean the filter with a vacuum or warm, soapy water. • If very dirty, wash with a solution of detergent in lukewarm water. • If hot water (50°C or more) is used, filter may be deformed. Re-install the air filter. 3 After washing with water, dry well in the shade. 2 B A J C D E Indoor Unit Dimensions (mm) G (Unit:mm) Dimension A B C D E F G H I J Capacity(Btu/h) I F 18 / 24 BTU/h 1130 1180 383 575 93 190 21 1065 163 1100 H Drainage hole Drain Pump use 9 HAND OVER Teach the customer the operation and maintenance procedures, using the operation manual. (air filter cleaning, temperature control, etc.) Standard Accessories 2 EA 1 EA Quantity Clamp metal Drain hose Name Washer for hanging backet 8 EA Clamp (Tie Wrap) 4 EA Insulation for fitting (Other) 1 SET • Owner's manual • Installation manual Shape for gas pipe for liquid pipe E). Insulation of the Piping & Drain INSULATION, OTHERS THERMAL INSULATION Insulate the joint and tubes completely. All thermal insulation must comply with local requirement. INDOOR UNIT Union for gas pipe Thermal insulator for refrigerant pipe (Local supply) Thermal insulator for piping(Local supply) Refrigerant pipe and thermal insulator(Local supply) Hose clip for thermal insulator (Local supply) Overlap with thermal insulator for piping. Hose clip for thermal insulator(Local supply) Make sure that there is no clearance here. Thermal insulator for refrigerant pipe (Local supply) Union for liquid pipe Felt Cabinet Rubber Insulation No clearance TEST AND CHECK n After all workings are finished, check the working and operation. • Air distribution ............... Is the air circulation good? • Drain ............................. Is the drainage smoothly and no sweating? • Gas leakage ................. Is the piping connection correctly? • Wiring ........................... Is the wiring connection correctly? • Lock-bolt ....................... Is the lock-bolt of compressor loosened? • Insulation Is the unit fully insulated? • Ground Is the unit safely grounded? 8 D). Drain Piping • Drain piping must have down-slope (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reversal flow. • During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit. • The outside diameter of the drain connection on the indoor unit is 32mm. Piping material: Polyvinyl chloride pipe VP-25 and pipe fittings Pipe clamp Indoor unit Upward routing not allowed Maintenance drain port • Be sure to install heat insulation on the drain piping. Heat insulation material: Polyethylene foam with thickness more than 8 mm. Drain test The air conditioner uses a drain pump to drain water. Use the following procedure to test the drain pump operation: Feed water Flexible drain hose • 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. Main drain pipe Drain Pump Drain port Glue the joint Drain hose connection Use the clip Drain pan CAUTION : The supplied flexible drain hose should not be curved, neither screwed. The curved or screwed hose may cause a leakage of water. Max 300mm Hanger distance 1~15m Hanger Bracket 1/50~1/100 slope Max 700mm Metal clamp Flexible drain hose Insulation CAUTION: After the confirmation of the above conditions, prepare the wiring as follows: 1) Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram posted on the inside of control box cover. 2) Provide a circuit breaker switch between power source and the unit. 3) The screws 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 give rise to burn-out of the wires.) 4) Specification of power source 5) Confirm that electrical capacity is sufficient. 6) Be sure that the starting voltage is maintained 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 contact point, fuse breaking, disturbance by the normal function of an overload protection device. • Proper starting power is not given to the compressor. 7 C).Filter convertible option. Air Filter Panel Rear Air outlet Panel Rear • Low static duct type in case of suction from back side. Air outlet Air Filter • Low static duct type in case of suction from bottom side. CAUTION 1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner. 2. Minimum thickness of the insulation for the connecting pipe shall be 19mm. Front of view • The unit must be horizontal or declined to the drain hose connected when finished installation. Ceiling Drainage hole Drain Pump use 6 B).Ceiling dimension and hanging bolt location Installation of Unit Install the unit above the ceiling correctly. B A J CASE 1 POSITION OF SUSPENSION BOLT G • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. C D E • Apply a filter Accessory at air return hole. (Unit:mm) I F Dimension A B C D E F G H I J H Capacity(Btu/h) Drainage hole 18 / 24 BTU/h 1130 1180 383 575 93 190 Drain Pump use 21 1065 163 1100 X8 M10 Nut X4 M10 washer X4 M10 washer X4 M10 Nut CASE 2 • Install the unit leaning to a drainage hole side as a figure for easy water drainage. POSITION OF CONSOLE BOLT • 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. Indoor Unit Installation • 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. • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. Old building New building 1 Set anchor Plate washer 3 Spring washer 4 Nut CAUTION : Tighten the nut and bolt to prevent unit falling. 5 Suspension bolts 5 2). Installation of indoor & Outdoor. A).Selection of the best location of Indoor Indoor unit Install the air conditioner in the location that satisfies the following conditions. • 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. Inspection hole (600 x 600) Control box • The place where the unit shall be leveled. • The place shall easily connect with the outdoor unit. 600 600 • The place where the unit is not affected by an electrical noise. • The place where air circulation in the room will be good . Side view (unit: mm) • There should not be any heat source or steam near the unit Confirm the positional relationship between the unit and suspension bolts. • Installation the ceiling opening to clean the filter or service under the product. H=20 or more • Suitable dimension "H" is necessary to get a slooe to drain as aiven in the fiaure (Length: mm) Capacity(Btu/h) 18/24k 1100 600 B A Low static Duct type B(Min) A(Min) Ceiling Service Space A B [Inspection Hole Standard] More than 100cm 1 Distance between False ceiling & Actual ceiling Number of Inspection hole 2 Hole size should be more than the size of IDU. Remarks Sufficient space in the ceiling for servicing. Minimum height for motor replacement. Less than 20cm Insufficient space. Difficult for servicing 20cm to 100cm 4 1. The following should be always observed for safety • Please report to or take consent by the supply authority before connecting to the system. • Be sure to read "THE FOLLOWING SHOULD BE ALWAYS OBSERVED FOR SAFETY" before installing the air conditioner. • Be sure to observe the cautions specified here as they include important items related to safety. • The indications and meanings are as follows. Could lead to serious injury in particular environments when operated incorrectly. CAUTION Could lead to death, serious injury, etc. WARNING • After reading this manual, be sure to keep it together with the owner's manual in an accessible place. WARNING Do not install it yourself (customer). Perform the installation securely referring to the installation manual. Attach the electrical part cover to the indoor unit and the service panel to the outdoor unit securely. Use the specified wires to connect the indoor and the outdoor units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections. • If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock. • When installed in an insufficient strong place, the unit could fall causing injured. Perform electrical work according to the installation manual and be sure to use an exclusive circuit. Install the unit securely in a place which can bear the weight of the unit. • Incomplete installation could cause a personal injury due to fire, electric shock, the unit falling or a leakage of water. • Incomplete installation could cause injury due to fire, electric shock, the unit falling or a leakage of water. Consult the dealer from whom you purchased the unit or special installer. • Incomplete connecting and fixing could cause fire. • If the electrical part cover if the indoor unit and/or the service panel if the outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc. Be sure to use the part provided or specified parts for the installation work. Check that the refrigerant gas do not leak after installation is completed. • The use of defective parts could cause an injury or leakage of water due to a fire, electric shock, the unit falling, etc. CAUTION Perform the drainage/piping work securely according to the installation manual. Do not install the unit in a place where an inflammable gas leaks. • If there is a defect in the drainage/piping work, water could drop from the unit and household goods could be wet and damaged. • If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion. 3 OUT-LINE OF INSTALLATION Index Page No. 1.The following should be always observed for safety.............................. 3 Installation works Installation Parts Required tools 2. Installation of Indoor, Outdoor unit ......................................................... 4 • Level • Screw driver • Electric drill • Hole core drill (ø70mm) A) B) C) D) E) F) Selection of best location of indoor .....04 Ceiling dimension & Hanging blot detail........05 • Four Type “A” screws Filter convertible option.......06 Drain piping .........................07 • Connecting cable Insulation of the piping & drain...08 Out door unit best location & piping ....10 3. Connecting Pipes to the Indoor Unit ..................................................... 12 • FlaringTools set • Pipes: Gas side 1) Preparation of Piping...12 Liquid side • Insulated drain hose • Insulation materials 4. Connecting Pipes to the Outdoor Unit .................................................. 14 1) Connecting the pipes to the Outdoor Unit ..........14 5. IR Remote Sensor installation & operation detail................................. 14 6. Connecting Cables between Indoor Unit and Outdoor Unit ................ 16 • Screw driver A) Circuit Breaker Detail......................16 B) Wiring diagram, wiring specification & interconnection detail.................................. ................17 C) Outdoor Wire Routine & Pipe Routine.......19 7. Air Purging of the Connecting Pipes and the Indoor Unit.................... 21 • Hexagonal Wrench (4mm/5mm) • Gas-leak Detector 8. Operating Instructions.................... ........................................................ 22 A) Indoor Unit, Outdoor Unit ...................... 22 B) Remote Control Preparation .. .............. 23 C) Remote Control Operations .. ............... 24 2 INSTALLATION MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. TYPE : LOW STATIC HIDE AWAY TYPE AIR CONDITIONER For single duct low static models MFL62760203 CALL CENTER 1800-180-3575 CALL (Toll Free) CLICK www.lg.com/in/support cac.service@lgepartner.com www.facebook.com/lgindiapage www.twitter.com/LGIndiaTweets To know more about LG, visit www.lg.com For Corporate/Instutional enquiries, please write to enquiries@lgindia.com Regd. Office : LG Electronics India Pvt. Ltd., A Wing (3rd Floor), D-3, District Center, Saket, New Delhi - 110017