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LG LT-C186FLE0 Owner's Manual
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27 Pages
LG LT-C186FLE0 Below you will find brief product information for LG LT-C186FLE0, which will help you get to know its features and possible use cases. This air conditioner is characterized by Anti-bacteria filter that keeps the air clean of unwanted particles for your well-being. Keep your home environment comfortable with the remote controller that provides you with easy access to all features.
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LG LG Cassette Type Air Conditioner INSTALLATION MANUAL IMPORTANT • Please read this installation manual completely before installing the product. • When the power cord is damaged, 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. • Please retain this installation manual for future reference after reading it thoroughly. Cassette Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Requirements Required Parts Required Tools Safety Precautions............................3 ❏ Connecting cable ❏ Horizontal meter ❏ Pipes: Gas side Liquid side ❏ Screw driver Introduction ........................................6 Symbols used in this Manual..........6 Features ...........................................6 Installation ..........................................7 ❏ Electric drill ❏ Hanging Bolt (W 3/8 or M10 length 650mm) ❏ Hole core drill (ø70mm) ❏ Insulated drain hose ❏ Flaring Tools set ❏ Additional Drain hose (Inner Dia.............32mm) ❏ Torque Wrenches ❏ Hexagonal Wrench (4mm, 5mm) Installation Tools...............................7 ❏ Gas-leak detector Installation of Indoor, Outdoor Unit .................................................8 ❏ Owner’s Manual Test running .................................20 Optional operation ....................22 2 Cassette Type Air Conditioner ❏ Installation Manual ❏ Thermometer Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage. ■ Meanings of symbols used in this manual are as shown below. Be sure not to do. Be sure to follow the instruction. ■ Installation Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Always ground the product. • There is risk of fire or electric shock. • Do not disassemble or repair the product. There is risk of fire or electric shock. • There is risk of fire or electric shock. Install the panel and the cover of control box securely. Always install a dedicated circuit and breaker. Use the correctly rated breaker or fuse. • There is risk of fire or electric shock. • Improper wiring or installation may cause fire or electric shock • There is risk of fire or electric shock. Installation Manual 3 Safety Precautions Do not modify or extend the power cable. Be cautious when unpacking and installing the product. • There is risk of fire or electric shock. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator. For installation, always contact the dealer or an Authorized Service Center. Do not install the product on a defective installation stand. • There is risk of fire, electric shock, explosion, or injury. • It may cause injury, accident, or damage to the product. Be sure the installation area does not deteriorate with age. 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. • If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury. • Moisture may condense and wet or damage furniture. ■ Operation Do not store or use flammable gas or combustibles near the product. • There is risk of fire or failure of product. Gasolin 4 Cassette Type Air Conditioner Safety Precautions ■ Installation Always check for gas (refrigerant) leakage after installation or repair of product. Install the drain hose to ensure that water is drained away properly. • Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage. Keep level even when installing the product. Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. • To avoid vibration or water leakage. • It may cause a problem for your neighbors. 90˚ Use two or more people to lift and transport the product. • Avoid personal injury. Do not install the product where it will be exposed to sea wind (salt spray) directly. • It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation. Installation Manual 5 Introduction Introduction Symbols used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that may cause harm to the air conditioner. NOTICE This symbol indicates special notes. Features Anti-bacteria filter Air Intake Air Outlet 6 Cassette Type Air Conditioner Installation Installation Installation Tools Figure Name Figure Name Screw driver Ohmmeter Electric drill Hexagonal wrench Measuring tape, Knife Ammeter Hole core drill Gas-leak detector Spanner Thermometer, Horizontal meter Torque wrench Flaring tool set Installation Manual 7 Installation yyy ;;; ;;; yyy ;; y ; 2) Outdoor unit • If an awning is built over the unit to prevent direct sunlight or rain exposure, be careful that heat radiation from the condenser is not restricted. • There should not be any animals or plants which could be affected by hot air discharged. • Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. Ceiling Ceiling Board 50 or more Ceiling Board 30 or less • There should not be any heat source or steam near the unit. • There should not be any obstacles to prevent the air circulation. • A place where air circulation in the room will be good. • A place where drainage can be easily obtained. • A place where noise prevention 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. • The indoor unit must keep the maintenance space. 50 or more Above 250 400 or less 1) Indoor unit 100 or more Selection of the best location 30 or more Installation of Indoor, Outdoor Unit Unit:cm Floor More than 30cm Fe ob nce sta or cle s Su nro of More than 30cm More than 50cm More than 70cm 8 Cassette Type Air Conditioner Installation 3) Piping length and the elevation Pipe Size (Diameter:Ø) Gas Liquid Standard Max. Standard Max. *Additional refrigerant (g/m) 18K Btu/h 5/8" 1/4" 7.5 30 5 30 30 24K Btu/h 5/8" 1/4" 7.5 30 5 30 30 Capacity Length A(m) Elevation B(m) Outdoor unit Indoor unit Outdoor unit A B A Outdoor unit Oil trap B Indoor unit A B Indoor unit If piping length is more than 5m CAUTION: • Rated performance for refrigerant line length of:7.5m • Capacity is based on standard length and maximum allowance length is on the basis of reliability. • Improper refrigerant charge may result in abnormal cycle. • Oil trap should be installed every 10 meters. Installation Manual 9 Installation Ceiling opening dimensions and hanging bolt location • The dimensions of the paper model for installing are the same as those of the ceiling opening dimensions. 790 (Ceiling opening) 572(Hanging bolt) 109 744 Unit size 66 744 Unit size CAUTION: • This air-conditioner uses a drain pump. • Horizontly install the unit using a level gauge. • During the installation, care should be taken not to damage electric wires. 790 (Ceiling opening) 66 109 658 (Hanging bolt) • Select and mark the position for fixing bolts and piping hole. • Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction of drain hose. • Drill the hole for anchor bolt on the wall. Unit:mm Ceiling Level gauge Ceiling board NOTICE • Thoroughly study the following installation locations: 1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying, dispersing of water drops, drain pump malfunction, etc. In these cases, take the following actions: • Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner. • Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oily steam. Air conditioner Take enough distance Use the ventilation fan for smoke-collecting hood with sufficient capacity. Cooking table 2. Avoid installing air conditioner in such circumstances where cutting oil mist or iron powder is in suspension in factories, etc. 3. Avoid places where inflammable gas is generated, flows in, is stored or vented. 4. Avoid places where sulfurous acid gas or corrosive gas is generated. 5. Avoid places near high frequency generators. 10 Cassette Type Air Conditioner Installation The Indoor Unit Installation Ceiling Spring washer (M10) Flat washer for M10 (accessory) Ceiling board Flat washer for M10 (accessory) Nut (W3/8 or M10) Air Conditioner body Ceiling board Paper model for installation Adjust the same height • 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. 150mm Nut (W3/8 or M10) Keep the length of the bolt from the bracket to 40mm Set screw of paper model (4 pieces) Open the ceiling board along the outer edge of the paper model • Drill the piping hole on the wall slightly tilted to the outdoor side using a Ø 70 hole-core drill. Wall Indoor Outdoor 5~7mm Hanging bolt (W3/8 or M10) Remote Controller Installation • Although the room temperature sensor is in the indoor unit, the remote controller should be installed in such places away from direct sunlight and high humidity. Installation of the remote controller • Select places that are not splashed with water. • Select control position after receiving customer approval. • The room temperature sensor is built in the indoor unit. • This remote controller equipped with liquid crystal display. If this position is higher or lower, display is difficult to see.(The standard height is 1.2 ~ 1.5m high) Routing of the remote controller cord • Keep the remote controller cord away from the refrigerant piping and the drain piping. • To protect the remote controller cord from electrical noise, place the cord at least 5cm away from other power cables (audio equipment, television set, etc.) • If the remote controller cord is secured to the wall, provide a trap at the top of the cord to prevent water droplets from running. Installation Manual 11 Installation WIRED REMOTE CONTROL INSTALLATION DISASSEMBLING Front case Th • Separate the under plate from Remote control box. el ow er pa rt Remote control box body Lever carefully the box open using a screw driver, etc. • Fix the under plate on the wall • Fix the cord clamps on the wall by ø 3 tapping screws (accessory). • Fix the remote control cord. Face of wall Cord clamp (accessory) Under plate Screw (accessory) ELECTRICAL WIRING Remote controller (Main board) CN REMO Wire and make sure that teminal numbers are matched on unit side and remote controller side. The maximum length of the cord is 100m. If the length of the cord exceeds 50m, 2 use a wire size greater than 0.5mm . REMOTE CONTROL PREPARATION HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES 1. Remove the battery cover from the remote controller. • Slide the cover according to the arrow direction. 2. Insert the two batteries. • Be sure that the (+) and (-) directions are correct. • Be sure that both batteries are new. 3. Re-attach the cover. • Slide it back into position. 12 Cassette Type Air Conditioner • Do not use rechargeable batteries, such batteries differ from standard dry cells in shape, dimensions, and performance. • Romove the batteries from the remote controller if the air conditioner is not going to be used for some long time. Installation Wiring Connection • Open the control box cover and connect the Remote controller cord and Indoor power wires. Indoor power cord Control box cover Remote controller cord [Air inlet side view] Control box cover fitting screw(2 units) 1Phase, 18K, 24K Cooling Model. Terminal Block of Indoor Unit 3(L) 4(N) 5 6 7 1(L) 2(N) Terminal Block of Outdoor Unit 3(L) 4(N) 5 6 7 8 Power Cord CAUTION 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). /YL 20 mm NORMAL CROSS-SECTIONAL AREA 0.75mm2 (18K/24K/36K) 1 Phase 3 Phase 18K/24K/28K/30K 2.5mm2 BTU/h 7.5mm 8.5mm Capacity GN The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA). GN /YL 20 mm If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent. WARNING: Make sure that the screws of the terminal are free from looseness. Installation Manual 13 Installation ELECTRICAL WIRING 1. All wiring must comply with LOCAL REGULATIONS. 2. Select a power source that is capable of supplying the current required by the air conditioner. 3. Feed the power source to the unit via a distribution switch board designed for this purpose. 4. The terminal screws inside the control box may be loose due to vibration during transport. Check the screws for loose connection. (Running the air conditioner with loose connection can overload and damage electrical components.) 5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION. Main power source Circuit Breaker Use circuit breaker or time delay fuse. Switch box Refrigerant pipe CONNECTING THE CABLE TO OUTDOOR UNIT 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 2. Secure the cable onto the control board with the holder (clamper). Holder for power supply cord Terminal block Over 5mm 3. Refix the cover control to the original position with the screw. 4. Use a recongnized circuit breaker 20A between the power source and the unit. A disconnection device to adequately disconnect all supply lines must be fitted. 14 Cassette Type Air Conditioner Power supply cord Connecting cable Cover control Holder for connecting cable Installation Connecting Pipes to the Indoor Unit • Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Copper tube Slanted Uneven Rough 90° 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 Handle Bar Bar "A" Yoke • Carry out flaring work using flaring tool as shown below. Outside diameter A mm inch mm Ø6.35 1/4 0.5~0.8 Ø9.52 3/8 0.5~0.8 Ø12.7 1/2 0.5~0.8 Ø15.88 5/8 0.8~1.0 Ø19.05 3/4 0.8~1.0 Firmly hold copper tube in a bar(or die) as indicated dimension in the table above. Cone Copper pipe Clamp handle Red arrow mark Smooth all round Inside is shining without scratches = Improper flaring = 5) Check ■ Compare the flared work with figure below. ■ If flare is noted to be defective, cut off the flared section and do flaring work again. Even length all round Inclined Surface Cracked Uneven damaged thickness Installation Manual 15 Installation Piping Connection 1. Form the piping according to its routing. Avoid bending and bending back the same piping point more than three times. (This will result in hardening the pipe.) 2. After deforming the piping, align centers of the union fitting of the indoor unit and the piping, and tighten them firmly with wrenches. 3. Connect pipe to the service valve or ball valve which is located below the outdoor unit. 4. After completing the piping connection, be sure to check if there is gas leakage in indoor and outdoor connection. Liquid side Indoor unit Outdoor unit Flare connection Gas side Flare connection Vacuum drying 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. Model Liquid side piping Gas side piping 18K, 24K, 28K Btu/h Ø 6.35mm Ø15.88mm CAUTION: Use two wrenches and tighten with regular torque. Ø6.35mm Ø9.52mm Ø12.7mm Ø15.88mm Ø19.05mm Flare nut fastening torque 1.8 kg.m 4.0 kg.m 5.5 kg.m 6.6 kg.m 6.6 kg.m 16 Cassette Type Air Conditioner Union Installation Installation of Decorative Panel The decorative panel has its installation direction. Before installing the decorative panel, always remove the paper template. 1. Temporarily fix two decorative panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by amount 10mm in length.) The fixing screws (hexagon M5 screw) are included the indoor unit box. 2. Remove the air inlet grille from the decorative panel. (Remove the hook for the air inlet grille cord.) 3. Hook the decorative panel key hole ( ) on the screws fixed in step above, and slide the panel so that the screws reach the key hole edge. 4. Retighten completely two temporarily fixed screws and other two screws. (Total 4 screws) 5. Connect the louver motor connector and display connector. 6. After tightening these screws, install the air inlet grille (including the air filter). Piping side Air conditioner unit Decorative panel fixing screws (hexagon M5 screws) Temporally fitting at 2 places (Tightening about 10mm) Control box cover Louver motor Decorative panel Display Key holes Lead wire for louver motor and display Decorative panel fixing screws (Hexagon M5 screw) Inlet Grille Installation Manual 17 Installation CAUTION: Install certainly the decorative panel. Cool air leakage causes sweating. Water drops fall. Good example Bad example Air conditioner unit Air conditioner unit Air Cool air leakage (no good) Ceiling board Ceiling board Decorative panel Decorative panel Fit the insulator (this part) and be careful for cool air leakage Indoor Unit Drain Piping Pipe clamp • 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. Upward routing not allowed Indoor unit Maintenance drain port Piping material: Polyvinyl chloride pipe VP-25 and pipe fittings 1/50~1/100 MAX 700mm • Be sure to execute 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 (accessory) Main drain pipe Drain Pump Drain port Glue the joint Drain hose connection Use the clip (accessory) • 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. 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. 18 Cassette Type Air Conditioner Flexible drain hose 1/50~1/100 MAX 700mm Installation HEAT INSULATION 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C). Fastening band (accessory) 2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions with Mist" and confirmed that there is not Refrigerant piping any default. However, if it is operated for a long time in high humid atmosphere (dew Indoor unit Thermal insulator point temperature: more than 23°C), water (accessory) drops are liable to fall. In this case, add heat insulation material according to the following procedure: • Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm. • Stick glass wool on all air conditioners that are located in ceiling atmosphere. • In addition to the normal heat insulation (thickness: more than 8mm) for refrigerant piping (gas piping: thick piping) and drain piping, add further 10mm to 30mm thickness material. FORM THE PIPINGS 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 Pipings In case of the Outdoor unit being installed below position of the Indoor unit. Plastic Band Connecting cable Power supply cord 2. Tape the Pipings, drain hose and Connecting Cable from bottom to top. 3. Form the pipings gathered by taping along the exterior wall and fix it onto the wall by saddle or equivalent. Trap is required to prevent water from entering into electrical parts. Installation Manual 19 Installation 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. Test running 1) PRECAUTIONS IN TEST RUN • The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated. CAUTION: For test run, carry out the cooling operation firstly even during heating season. If heating operation is carried out firstly, it leads to the trouble of compressor. Then attention must be paid. Carry out the test run more than 5 minutes without fail. (Test run will be cancelled 18 minutes later automatically) • The test run is started by pressing the room temperature checking button and down timer button for 3 seconds at the same time. • To cancel the test run, press any button. CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETED • After completing work, be sure to measure and record trial run properties, and store measured data, etc. • Measuring 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. ❏ Is the circulation of air adequate? ❏ Is the draining smooth? ❏ Is the heat insulation complete (refrigerant and drain piping)? ❏ Is there any leakage of refrigerant? ❏ Is the remote controller switch operated? ❏ Is there any faulty wiring? ❏ Are not terminal screws loosened? M4......118N.cm{12kgf.cm} M5......196N.cm{20kgf.cm} M6......245N.cm{25kgf.cm} M8......588N.cm{60kgf.cm} 20 Cassette Type Air Conditioner Installation 2) Connection of power supply 1. Connect the power supply cord to the independent power supply. • Circuit breaker is required. 2. Operate the unit for 15 minutes or more. 3) Evaluation of the performance 1. Measure the temperature of the intake and discharge air. 2. Ensure the difference between the intake temperature and the discharge one is more than 8°C (Cooling) or reversely (Heating). Thermometer 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. HAND OVER Teach the customer the operation and maintenance procedures, using the operation manual (air filter cleaning, temperature control, etc.). Installation Manual 21 Installation Optional Operation Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room temperature is controlled by the thermistor of the main body. • Position 2: The room themperature is controlled by the thermistor of the wired remote-controller, control the temperature according to the position of wired remote-controller. • Position 3: The room temperature is controlled by lower temperature between the temperature of main body and of remote-controller sensor. (3) Move the slide switch to set position. Room Temp. sensor Slide switch for 2 Thermistor TH R14H OP3 SW TH REMO MAIN 2TH OP2 REMO MAIN 2TH R12H CO1H OP1 R19H R11H OP5R16H OP4 R15H OP7 R18H R17H OP6 LO STAND C070 Position 2 Position 1 Position 3 R13H R03S HI R04S HIGH R01S R02S SW Slide switch for ceiling height (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. • Maunfactured in the position 3. 22 Cassette Type Air Conditioner Installation Adjusting air volume to the height of ceiling You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the comfortable atmosphere to consumers. Procedure 1. Choose the selectable position in the table after measuring the height of ceiling. Ceiling height more than 4.0m 3.2~4.0m Mode of slide switch High Ceiling Standard Change of air volume Increasing - less than 3.2m Low Ceiling Decreasing Remark Maunfactured in standard mode 2. In the case of changing the height as "high" or "low", open the rear cover of the wired remotecontroller. 3. Move the slide switch to the set position. Slide switch for 2 Thermistor TH Low ceiling Standard (Default) High Ceiling Lo R14H OP3 SW TH STAND R13H OP2 REMO MAIN 2TH Hi R12H CO1H OP1 R19H R11H OP5R16H OP4 R15H OP7 R18H R17H OP6 C070 LO STAND R03S HI R04S SW HIGH R01S R02S Slide switch for ceiling height 4. Close the rear cover and check if it works nomally. Installation Manual 23 Installation Group Control(Optional Wiring) It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent. Main PCB RED(12V) YL(SIGNAL) BR(GND) Indoor Unit 1 Indoor Unit 2 Terminal(Local Supply) Block Connector Terminal(Local Supply) Block Connector RED(12V) YL(SIGNAL) BR(GND) Main PCB #1 YL(SIGNAL) BR(GND) YL(SIGNAL) BR(GND) Indoor Unit 16 Terminal(Local Supply) Block Connector Main PCB #2 .... AUTO SWING OPERATION SET TEMP Room Temp Operation unit 03 FAN SPEED HI MED LO Time Timer On Off Set no. Time 01 ZONE .... YL(SIGNAL) BR(GND) YL(SIGNAL) BR(GND) Main PCB #16 Connecting Cable(Local Supply) SUB FUNCTION AUTO Heater Preheat JET Defrost Humidify Filter Out door 1 2 3 4 Program set 05 07 09 11 13 15 17 19 21 23 Wired Remote Controller (Standard) Slide Switch2 Single Group Remote Controller PCB • Using the supplied Wired Remote Controller, wire them like above. • Move slide switch 2 to "Group" position. • Ensure that the color of wire. CAUTION: • Be careful not to exchange the color of wires. • The maximum length of connecting wire should be below 200m(25Ω) on connecting each units. • Use a wire more than 0.5mm2 24 Cassette Type Air Conditioner Memo Installation Manual 25 Memo 26 Cassette Type Air Conditioner P/No.: 3828A10001P
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