UV42FH - Air Conditioning LG - Free user manual and instructions

USER MANUAL UV42FH LG

MFL70520315Rev.00_191125 OWNER'S & INSTALLATION MANUAL Original instruction AIR CONDITIONER www.lg.com 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. Copyright © 2015 - 2019 LG Electronics Inc. All Rights Reserved.[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands[Manufacturer] LG Electronics Tianjin Appliances co.,Ltd. No.09,Jinwei Road,Beichen District,Tianjin,China.This manual is the simplified version of original manual. You can obtain the original manual from www.lg.com.ENGLISH ITALIANODEUTSCHČEŠTINANEDERLANDSPOLSKI

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MODEL DESIGNATION ENGLISH MODEL DESIGNATION - Product Name : Air conditioner - Model Name : - Additional Information : serial number is refer to the barcode on the product. - Maximum allowable pressure High side : 4.2 MPa / 4.32 MPa (it can be different by model) Low side : 2.4 MPa - Refrigerant : R32 Product information Serial number Indoor Unit / Outdoor Units Detailed product type only for M- series models AQ : Wall mounted Libero-R SQ : Wall mounted Libero-E AH* : ARTCOOL AW* : ART COOL Mirror AH : Ceiling Cassette AHL : Ceiling Concealed Duct (Low Static) Detailed product type for U- / C- series models L : Low Static H : High COP E : Econo F : Free combination FH : Free combination high COP Nominal Capacity Ex) 7 000 Btu/h Class → '07', 18 000 Btu/h Class → '18' Product type Connectable Outdoor unit type Chassis name

S : Wall mounted / ARTCOOL mirror J : Wall mounted A : ARTCOOL T : Ceiling Cassette B, M, L : Ceiling Concealed Duct V : Ceiling Suspended & floor Q : Console P : Floor Standing M : Indoor units only for Multi systems U : Indoor units only for Single CAC C : Common Indoor Unit for Multi and Single CAC N : Indoor Unit U : Outdoor Unit The A-weighted sound pressure emitted by this product is below 70 dB. ** The noise level can vary depending on the site. The figures quoted are emission level and are not necessarily safe working levels. Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not further precautions are required. Factor that influence the actual level of exposure of the workforce include the characteristics of the work room and the other sources of noise, i.e. the number of equipment and other adjacent processes and the length of time for which an operator exposed to the noise. Also, the permissible exposure level can vary from country to country. This information, however, will enable the user of the equipment to make a better evaluation of the hazard and risk. Airborne Noise EmissionSAFETY INSTRUCTIONS

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

• The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

• Ducts connected to an appliance shall not contain an ignition source. (for R32)

• This equipment shall be provided with a supply conductor complying with the national regulation.

Read the precautions in this manual carefully before operating the unit. This appliance is filled with flammable refrigerant (for R32) This symbol indicates that the Operation Manual should be read carefully. This symbol indicates that a service personnel should be handling this equipment with reference to the Installation Manual. WARNING This indicates that the failure to follow the instructions can cause serious injury or death. CAUTION This indicates that the failure to follow the instructions can cause the minor injury or damage to the product. This symbol is displayed to indicate matters and operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk.

SAFETY INSTRUCTIONS The following symbols are displayed on indoor and outdoor units. The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance. The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below.4 SAFETY INSTRUCTIONS ENGLISH

• Compliance with national gas regulations shall be observed.

• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification. (for R32)

• Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. (for R32) Installation

• Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse. There is risk of fire or electric shock.

• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product by yourself. There is risk of fire or electric shock.

• Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire. There is risk of fire or electric shock.

• Install the panel and the cover of control box securely. There is risk of fire or electric shock due to dust, water etc.

• Use the correctly rated breaker or fuse. There is risk of fire or electric shock.

• Do not modify or extend the power cable. If the power cable or cord has scratches or skin peeled off or deteriorated then it must be replaced. There is risk of fire or electric shock.

• For installation, removal or reinstall, always contact the dealer or an Authorized Service Center. There is risk of fire, electric shock, explosion, or injury.

• Do not install the product on a defective installation stand. Be sure that the installation area does not deteriorate with age. It may cause product to fall.

• Never install the outdoor unit on a moving base or a place from where it can fall down. The falling outdoor unit can cause damage or injury or even death of a person.

• In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work. An charged capacitor can cause electrical shock.

• When installing the unit, use the installation kit provided with the product. Otherwise the unit may fall and cause severe injury.

• Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connection terminals. Improper or loose connections can cause heat generation or fire.SAFETY INSTRUCTIONS

• Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or svc and then tear away and throw away the plastic packaging bags. Children may play with them and cause injury.

Be sure to check the refrigerant to be used. Please read the label on the product. Incorrect refrigerant used can prevent the normal operation of the unit.

• The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater.)

• Keep any required ventilation openings clear of obstruction.

• The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation. (for R32)

• 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.

• Mechanical connections shall be accessible for maintenance purposes.

• The appliance shall be disconnected from its power source during service and when replacing parts.

• The appliance shall be installed in accordance with national wiring regulations. Operation

• When the product is soaked (flooded or submerged) in water, contact an Authorized Service Center for repair before using it again. There is risk of fire or electric shock.

• Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment. The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.

• Do not touch, operate, or repair the product with wet hands. Hold the plug by hand when taking out. There is risk of electric shock or fire.

• Do not place a heater or other heating appliances near the power cable. There is risk of fire and electric shock.

• Do not allow water to run into electric parts. Install the unit away from water sources. There is risk of fire, failure of the product, or electric shock.

• Do not store or use or even allow flammable gas or combustibles near the product. There is risk of fire.

Do not use the product in a tightly closed space for a long time. Perform ventilation regularly. Oxygen deficiency could occur and hence harm your health.

• Do not open the front grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.

• If strange sound, smell or smoke comes from product. Immediately turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.SAFETY INSTRUCTIONS

Ventilate the product room from time to time when operating it together with a stove, or heating element etc. Oxygen deficiency can occur and hence harm your health.

• Do not touch refrigerant pipe and water pipe or any internal parts while the unit is operating or immediately after operation. It can cause a burn or frostbite.

• Do not step on the indoor/outdoor unit and do not put anything on it. It may cause an injury through dropping of the unit or falling down.

• When the product is not to be used for a long time, disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation.

• Take care to ensure that nobody especially kids could step on or fall onto the outdoor unit. This could result in personal injury and product damage.

• Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.

• Do not place anything on the power cable. There is risk of fire or electric shock.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turning on the product. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

• Make sure to ventilate sufficiently when this air conditioner and a heating appliance such as a heater are used simultaneously. Failure to do so may result in fire, serious injury, or product failure.

• Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water.

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.

• Do not pierce or burn refrigerant cycle part.

• Be aware that refrigerants may not contain an odour.

• When mechanical connectors are reused indoors, sealing parts shall be renewed. (for R32)

• When flared joints are reused indoors, the flare part shall be re-fabricated. (for R32) CAUTION Installation

• Two or more people must 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.

• Install the drain hose to ensure that the condensed water is drained away properly. A bad connection may cause water leakage.

• Keep level even when installing the product. To avoid vibration or noise.

• Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods. It may cause a problem for your neighbors and hence dispute. !SAFETY INSTRUCTIONS

• Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant levels may cause failure of product.

• Wear adequate personal protection equipment (PPE) when installing, maintaining or servicing the product.

• The appliance shall be stored so as to prevent mechanical damage from occurring.

• Refrigerant tubing shall be protected or enclosed to avoid damage.

• Flexible refrigerant connectors (such as connecting lines between the indoor and outdoor unit) that may be displaced during normal operations shall be protected against mechanical damage.

• The installation of pipe-work shall be kept to a minimum.

• Pipe-work shall be protected from physical damage.

• A brazed, welded, or mechanical connection shall be made before opening the valves to permit refrigerant to flow between the refrigerating system parts.

• Keep level parallel in installing the product. Otherwise, it may cause vibration or water leakage. It may cause injury or an accident.

• If anyone other than a licensed Professional installs, repairs, or alters LG Electronics Air Conditioning Products, the warranty is voided. All costs associated with repair are then the full responsibility of the owner.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

• Do not insert a drain hose in drain or soil pipe. Bad smells can occur and it results in a corrosion of a heat exchanger or pipe. Operation

• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of property.

• Do not block the inlet or outlet of air flow. It may cause product failure.

• Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

• Do not touch the metal parts of the product when removing the air filter. There is risk of personal injury.

• Do not step on or put anything on the product. There is risk of personal injury and failure of product.

• Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency.

• Do not insert hands or other objects through the air inlet or outlet while the product is operating. There are sharp and moving parts that could cause personal injury.

Be cautious when unpacking and installing the product. Sharp edges could cause injury.

• If the refrigerant gas leaks during the repair, do not touch the leaking refrigerant gas. The refrigerant gas can cause frostbite (cold burn).8 SAFETY INSTRUCTIONS ENGLISH

• Do not tilt the unit when removing or uninstalling it. The condensed water inside can spill.

• Do not touch refrigerant pipe and water pipe or any internal parts while the unit is operating or immediately after operation. It can cause a burn or frostbite.

• If the refrigerant gas leaks during the installation, ventilate the area immediately. Otherwise it can be harmful for your health.

• Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

• Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or product failure.

• Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire. They may burn or explode.

• If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

• If you swallow the battery fluid from a leak, wash out the inside of your mouth thoroughly and then consult a doctor. Failure to do so may result in serious health complications.

• Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. Moisture may condense and wet or damage furniture.

• Do not expose your skin or kids or plants to the cool or hot air draft. This could harm to your health.

• Do not drink the water drained from the product. It is not sanitary and could cause serious health issues.

• Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height. Be careful and avoid personal injury.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision

• Suitable dimension "H" is necessary to get a slope to drain as shown in the figure.

• The feature can be changed according to type of model. Unit : mmCeilingCeiling BoardCeiling Board 1 000 or more500 or more 500 or more 300 or lessAt least 1 800H or lessFloor10 or more Chassis H TU/TT 3 300 TQ/TR/TP/TP-B 3 600 TN/TM/TM-A 4 200 More than 200 More than 100 More than 2 300 More than 100 (Unit : mm) H=20 or more (unit: mm) FrontInspection hole 600 x 600Control box1 000or moreAir outlet ventsAir inlet vents or more or more (unit: mm) Top view Side view Be very careful while carrying the product.

• Do not have only one person carry product if it is more than 20 kg.

• PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.

• Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands.

• Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may suffocate children to death.

• When carrying in Unit, be sure to support it at four points. Carrying in and lifting with 3- point support may make Outdoor Unit unstable, resulting in a fall.

• Use 2 belts of at least 8 m long.

• Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage.

• Hoist the unit making sure it is being lifted at its center of gravity. CAUTION More than 700 More than 700 More than 300 (Unit : mm) - 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. !10 INSTALLATION PLACES ENGLISH - The appliance shall be installed, operated and stored in a room with a floor area larger than the minimum area. - Use the graph of table to determine the minimum area. - m : Total refrigerant amount in the system - Total refrigerant amount : factory refrigerant charge + additional refrigerant amount - Amin : minimum area for installation Minimum floor area (for R32)

m (kg) Floor standing Wall mounted Ceiling mounted Floor locationm (kg) Amin (m

Set screw of paper model (4 pieces) Paper model for installation Ceiling board 150 mm Ceiling board Ceiling Keep the length of the bolt from the bracket to 40 mm Open the ceiling board along the outer edge of the paper model Air Conditioner body Keep the length of 15~18 mm between the air conditioner bottom surface and the ceiling surface Adjust the same height Keep the length of the bolt from the bracket to 40 mm Ceiling board Set screw of paper model (4 pieces) Paper model for installation 70 mm Adjust the same height Ceiling board Ceiling Open the ceiling board along the outer edge of the paper model Air conditioner body Keep the length of 20~22 mm between the air conditioner bottom surface and the ceiling surface Flat washer for M10 (accessory) Flat washer for M10 (accessory) Hanging bolt (W3/8 or M10) Nut (W3/8 or M10) Nut (W3/8 or M10) Spring washer (M10) 4Way 1Way

• The feature can be changed according to type of model. - 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.

• This air-conditioner uses a drain pump.

• Install the unit horizontally using a level gauge.

• During the installation, care should be taken not to damage electric wires. CAUTION !12

• The feature can be changed according to type of model. Position of suspension Bolt - Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. - Apply a filter Accessory at air return hole. Position of console Bolt - 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.THE INDOOR UNIT INSTALLATION

ENGLISH Fixing Installation Plate The wall you select should be strong and solid enough to prevent vibration. 1 Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts. - Mount the installation plate horizontally by aligning the centerline using Horizontal meter. SK/SJ Chassis SR Chassis Installation of Indoor Unit 1 Hook the indoor unit onto the upper portion of the installation plate.( engage the three hooks at the top of the indoor unit with the upper edge of the installation plate) Ensure that the hooks are properly seated on the installation plate by moving it left and right. 2 Unlock the tubing holder from the chassis and mount between the chassis and installation plate in order to separate the bottom side of the indoor unit from the wall. 2 Measure the wall and mark the centerline. It is also important to use caution concerning the location of the installation plate. Routing of the wiring to power outlets is through the walls typically. Drilling the hole through the wall for piping connections must be done safely. SK/SJ Chassis Installation Plate Type "A" Screws (Unit : mm)194152 Ø 65 Right rear pipingLeft rear piping Ø 65 C Type : 134C Type : 98C TypeC Type : 418 C Type : 418Place a level on raised tabUnit OutlineInstallation Plate C Type: 494 C Type: 504Place a level on raised tabUnit Outline C Type: 134Measuring Tape Ø 65

• The feature can be changed according to type of model. SR Chassis14

ELECTRIC WIRING WORK

ENGLISH General instructions - All field supplied parts and materials, electric works must conform to local codes. Use copper wire only. - Follow the "WIRING DIAGRAM” attached to the unit body to wire the outdoor unit, indoor units and the remote controller. - All wiring must be performed by an authorized electrician. Wiring Connection Connect the wires to the terminals on the control board individually according to the out door 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.

ELECTRIC WIRING WORK

1(L) 2(N) 3 Connected to outdoor unit or B.D. unit. Remote controller cord Connection cord between the indoor unit and the outdoor unit Control box cover (On which the Electric Wiring Connection is put)

Control boxControl box cover (On which the ElectricWiring Connection is put)Control terminal boardRemote controller cordConnection cord between the indoor unit and the outdoor unit

- Open the control box cover and connect the Remote controller cord and Indoor power wires. - Remove the control box cover for electrical connection between the indoor and outdoor unit. (Remove screws ①) - Use the cord clamper to fix the cord. (1) Open the Decor (2) Unscrew the screw of C/Box (3) Slide up the Metal Plate Cover (4) Connect the connecting cable (5) After complete connect the cables, should assemble the Metal Plate Cover by screw.

• The feature can be changed according a type of model. DecorPower connectingcable1(L) 2(N) 3(C)ELECTRIC WIRING WORK

ENGLISH Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block. When none are available, follow the instructions below. - Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.) - When connecting wiring which is the same thickness, do as shown in the figure below. Power wire Round pressure terminal Connect same thickness wiring to both sides. It is forbidden to connect two to one side. It is forbidden to connect wiring of different thicknesses. - For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure being exerted on the terminal block. - Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will strip the head and make proper tightening impossible. - Over-tightening the terminal screws may break them.

• 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).

• If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer of its service agent. CAUTION

20 mmGN/YLNORMALCROSS-SECTIONAL AREA Rated current of appliance A. Nominal cross-sectional area

≤ 0.2 > 0.2 and ≤ 3 > 3 and ≤ 6 > 6 and ≤ 10 > 10 and ≤ 16 > 16 and ≤ 25 > 25 and ≤ 32 > 32 and ≤ 40 > 40 and ≤ 63 Tinsel cord

NOTE For supply cords supplied with multi-phase appliances, the nominal cross-sectional area of the conductors is based on the maximum cross-sectional area of the conductors per phase at the supply cord connection to the appliance terminals.16 MAINTENANCEENGLISHClean the product regularly to maintainoptimal performance and to prevent possiblebreakdown. Operation Tips!

• Do not overcool the room.This is not good for the health and wasteselectricity. Keep blinds or curtains closed.Do not let direct sunshine enter the roomwhen the air conditioner is in operation.• Keep the room temperature uniform. Adjust the vertical and horizontal airflowdirection to ensure a uniform temperature inthe room.• Make sure that the doors and windows areshut tight.Avoid opening doors and windows as muchas possible to keep the cool air in the room.• Clean the air filter regularly. Blockages in the air filter reduce the airflowand lower cooling and dehumidifyingeffects. Clean at least once every twoweeks.• Ventilate the room occasionally.Since windows are kept closed, it is a goodidea to open them and ventilate the roomnow and then. When the air conditioner is not going.... When air conditioner is not going to be usedfor a long time. 1 Operate the air conditioner at the following settings for 2 to 3 hours.• Type of operation: Fan operationmode.(Refer to page "Fan Mode")• This will dry out the internal mechanisms. 2 Turn off the breaker. 3 Remove the batteries from the Remote Controller. Helpful information The air filters and your electric bill.If the air filters become clogged with dust, thecooling capacity will drop, and 6 % of theelectricity used to operate the air conditionerwill be wasted. When the air conditioner is to be used again. 1 Clean the air filter and install it in the indoor unit. (Refer to page "Maintenance andService") 2 Check that the air inlet and outlet of the indoor/outdoor unit are not blocked. 3 Check that the ground wire is connected correctly. It may be connect to the indoorunit side. MAINTENANCE CAUTION

• Turn off the power and unplug thepower cord before you perform anymaintenance; otherwise it may causeelectric shock.• Never use water that is hotter than40 °C when you clean the filters. It maycause deformation or discoloration.• Never use volatile substances when youclean the filters. They may damage thesurface of the product.Turn off the breaker when the airconditioner is not going to be used for along time. Dirt may collect and may causea fire. CAUTION !MAINTENANCE

ENGLISH Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer. Call the service immediately in the following situations 1 Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and turn the breaker off. Never try to repair by yourself or restart the system in such cases. 2 Main power cord is too hot or damaged. 3 Error code is generated by self diagnosis. 4 Water leaks from indoor unit even if the humidity is low. 5 Any switch, breaker (safety, earth) or fuse fails to work properly User must carry routine checkup & cleaning to avoid unit’s poor performance. In case of special situation, the job must be carried out by service person only. Case Explanation The air conditioner does not operate.

• Have you made a mistake in timer operation?

• Has the fuse blown or has the circuit breaker been tripped? The room has a peculiar odor.

• Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room. It seems that condensation is leaking from the air conditioner.

• Condensation occurs when the airflow from the air conditioner cools the warm room air. Air conditioner does not operate for about 3 minutes when restart.

• This is the protector of the mechanism.

• Wait about three minutes and operation will begin. Does not cool or heat effectively.

• Is the air filter dirty? See air filter cleaning instructions.

• The room may have been very hot when the room air conditioner was first turned on. Allow time for it to cool down.

• Has the setting temperature been set incorrectly?

• Are the indoor unit's air inlet or outlet vents obstructed? The air conditioner operation is noisy.

• For a noise that sounds like water flowing. - This is the sound of freon flowing inside the air conditioner unit.

• 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. Crack sound is heard.

• This sound is generated by the expansion/contraction of the inlet grille, etc. due to changes of temperature. Remote control display is faint, or no display at all.

• Has the circuit breaker been tripped?

• Are the batteries inserted in the opposite (+) and (-) directions? The error code is occurred after lightning struck

• This product has been applied to the over current protection circuit. Error can occur, but it is normal behavior. After few minutes, It will operate normally.18 ENGLISHMANUALE DELL'UTILIZZATORE

NEDERLANDS WAARSCHUWING