OWNER’S MANUAL AIR PURIFIER Read before using product (safety instruction), use properly. About ensuring users safety and property. Product warranty card is enclosed with the user manual. After careful read through the user manual, do keep it in a handy place. PH-U450 Series www.lg.
The advantages are Congratulations on your purchase and welcome to the LG Family. By following the use and care instructions in this manual, your air purifier will provide you with many years of reliable service. 3-dimensional sterilization system - Bio-enzyme deodorization filter completely removes those factors which could cause the sick house syndrome such as VOCs, harmful chemical element and its smell. - Sterilized by Washable HEPA filter Inside, once again sterilized by NPI(Nano Plasma Ion) outside.
Content Care and Cleaning Cleaning .............................................................................31 Exterior and dust sensor cleaning method....................32-33 Filter cleaning and exchange ........................................34-36 Storage...............................................................................37 Troubleshooting before calling for service ....................38-40 Product standard ................................................................
Safety Precautions The precautions related with the safety shown below are to prevent unexpected hazard and damage through safe and accurate operation of the product. Warning / Caution This symbol will alert you to any product detail or operation that could lead to a safety hazard if the instructions in the manual are not followed properly. 4 WARNING If not followed, it can cause death or major injury to the user.
Safety Precautions Warning When using the multi-outlet, do not use several appliances at the same time. Excessive use of electric power will be the cause of fire and electric shock. When the outlet is damaged or loosened, do not use it. It will be the cause of fire and electric shock. When gas is leaked, perform the ventilation by opening the window before operating the air purifier or remote controller. Otherwise, it will be the cause of the explosion, fire, and burn.
Safety Precautions Warning Insert securely the power plug up to the end of its plug so that it will not be shaken. If connection is unstable, it will be the cause of fire. Do not touch the power plug with wet hand. This will be the cause of electric shock and injury. Do not remove the plug by pulling its power cord section. This will be the cause of fire and electric shock. Do not place rug etc. on the power cord.
Safety Precautions Warning Do not move the product while it is under operation. This can be the cause of fire and electric shock or partial damage of the product can be occurred. Do not allow water to be infiltrated into the product. This will be the cause of fire and electric shock. Do not put coffee, flower vase, or various drinks on the top section of the product. This will be the cause of fire and electric shock.
Safety Precautions Warning Do not fill water directly on to the tray. Water can overflow to cause damage to the product and electric shock. Do not use the damaged water tank as is. Water can flow or overflow from the tray to cause electric shock or problem to product, and it can also damage other appliances. If there is water in the water tank and tray, move the product after removing the water tank and tray. Water inside the product can overflow to cause electric shock and product damage.
Safety Precautions Caution Do not use the product to remove toxic gas such as carbon monoxide. It can cause product failure. Do not use the product near the curtain. Humidity sensor may not work properly. Do not let the child open the front panel. The product can fall on top of the child to cause injury. Do not move the product by grabbing the front panel of the product. The product may partially be damaged. Do not place any obstacles around the air inlet or outlet of the product.
Safety Precautions Caution Be sure to insert all the filters before the use and perform regular cleaning of the pre-filter. Otherwise, it will be the cause of product failure. Do not damage, process, excessively bend, twist, pull, insert into gap or heat the power cord. Damaged cord can cause fire or electric shock. If the power cord is damaged, request for repair to the service technician to prevent any risk. If not, it can cause fire, electric shock or product failure.
Safety Precautions Caution Do not drink the water used in the humidifier. It can have negative effect on your body such as stomachache or diarrhea. Exchange the water in the tank with fresh water on a daily basis. Throw away the water in the tray and clean the tray frequently. Contaminated water can deteriorate the performance, cause bad smell or send the scaling from the water through the blowing air. Do not use the product sideways. Water can overflow to cause product failure.
Cautions for Safety Caution Use clean tap water at temperature of 40˚C or less. Using water warmer than 40˚C can cause product deformation. Do not use the humidifier filter for other usage. It can deteriorate the performance of the humidifier filter. Do not use hot water above 40˚C, air freshener, chemical or detergent in the water tank and tray. Deformation can cause leakage. Do not apply any impact on the water tank. Damage can cause leakage. Do not carry the product by holding the tray cover.
Installation Places to Install • Places with handy power connections • Places with no obstacle to clog air inlet • Places with horizontal surface and rich air circulation Getting Started Mainframe han re t m o M 0c 1 Warning Install the air purifier on moving objects (car or ship etc) may cause the product defect, therefore do not install on those places.
Air Purifier Start Guide Turn off air purifier when cleaning. • Cleaning the air purifier with opened windows would disturb the natural air circulation to cause intake too much particles, it may shorten the filter life. After complete cleaning process with enough air circulation, close the windows, turn on the air purifier is the appropriate way to purify air. Use after enough air circulation when cooking • When roast meat or fishs, remove the smell by air purifier is not appropriate.
Name of Each Part Mainframe Getting Started Air outlet Cover Hand grip Filter case (Pre-filter + Allergy filter + Deodorization filter + HEPA filter) Dust sensing section Odor sensing section Front panel Power cord ※ Shape of the power cord can be different by country Owner’s Manual 15
Name of Each Part Humidifier function Humidifier filter Humidifier filter cover Humidifier filter case Tray cover Water tank Float Tank lever Tank cover Cleaning brush Tray Packing Tray lid 16 Cap Air Purifier
Name of Each Part Display and Control Panel This can be selected from 1 to 9 hours by pressing off timer button. If the front panel is open, “DR” is displayed. “DR” is the abbreviation of DOOR. Getting Started Off timer indicator Humidifier Lock indicator Press the humidifier button and OFF timer button simultaneously to lock or unlock the air purifier. Operation mode indicator Fan speed indicator Press the operation mode button to select the operation mode.
Name of each section Front LED lighting The operation and cleanness indicator lamp can be turned on/off through the power save function. * Power save function operates when the user presses the operation mode button and fan speed button on the main unit simultaneously. Filter self-checking indicatior Check the filter when light is on. Clean Air Indicator Light / Mood Light • Under general mode, clean air indicator light will show the quality the air in the surrounding area.
Name of each section Getting Started Filter system (Only the filter section is described.) Filter name 1⃞ Pre-filter Remove big particles Anti-bacteria function Anti-mildew function Function This filter has anti-bacteria, anti- mildew, big particles filtering fuctions. These 3 functions may extend the filter replacement frequency. Adsorb and decompose allergic ingredients.
Name of each section Humidifier filter system Filter name 1⃞ Humidifier filter Function The indoor air evaporates the water and removes the alien particles included in the water. Cleaning and replacement cycle Cleaning cycle: More than 1 time weekly Replacement cycle: 6-12 months ※ Life of the humidifier filter may vary based on the water quality. ※ Replace the filter in the following cases even when it is within 6 months. • When the scaling or odor does not disappear even after cleaning.
Operation Air Purifying Operation Purify Indoor Air. 1⃞ Press On/Off Button. A confirmation tone will sound to indicate that the unit is powering on. The unit will also produce a tone when the unit is first plugged in. (Refer to the “start-up operation”.) Fresh air will come out from the air outlet. • Press On/Off button again to turn off. • When restart air purifier, system will retrieve to the previous operating condition.
Operation Manual Mode User may manually adjust fan speed. 1⃞ Press the On/Off button. 2⃞ Select Manual Mode by pressing the Operation Mode Button. 3⃞ Select the desired fan speed by pressing the Fan Speed Button. • Default fan speed is weak speed. • Fan speed can be operated in 4 levels. Automatic mode The air purifier will automatically set the most appropriate fan speed. 1⃞ Press On/Off button. 1 2 3 2⃞ Select Auto Mode by pressing the Operation Mode Button.
Operation Sandstorm Mode Purify indoor air effectively when the sandstorm occurs. Press the On/Off button. Select Sand Mode by pressing the Operation Mode Button. Sleeping Mode How to use • During the Sand Mode, if the Fan Speed Button is pressed, it will be converted into the Manual Mode and fan speed will increase by one level. • Fan speed will automatically be adjusted with the pre-inputted program. • Those functions other than fan speed will be activated when setting up by the user.
Additional function Off Timer function Automatically shut down after several hours. Example) shut down automatically after 3 hours 1⃞ Press the On/Off button. 2⃞ Press Off Timer Button to set 3 hours. • Each time pressing the button, operation time will increase 1 more hour. • Each time pressing the button, operation time will increase 1 more hour. • Up to 9 hours can be selected. After operating till the presetting time, the product will be stopped automatically.
Additional function NPI Sterilization function Purify indoor air effectively when the sandstorm occurs. During the NPI stefilization operation, many kind of bacteria in the room will be eliminated by discharging the sterilization ion which is harmless to the human body. 1⃞ Press the On/Off Button. 2⃞ Press the ION button to choose expected function. • Whenever pressing the button once, it will be changed in the sequence of NPI → Function release → NPI → Function release ……….
Additional Function Filter Checking Function May remind users to clean or replace the filter after use for a certain period. 1⃞ During the operation, if the filter checking indicator light is on, open the front panel and check the filter under the operation state of the air purifier. 2⃞ Detailed information for the filter cleaning, refer to the page 34-35. • Filter maintenance may vary depending on the environment.
Additional Function Power save setting This function sets the operation and cleanness indicator lamp off. 1⃞ When the user presses the operation mode and fan speed button simultaneously while the product is operating, the power save function will be set or canceled. • When the operation and cleanness indicator lamps are not turned while the product is operating, cancel the power save function.
Humidifier function This maintains the optimal level of humidity when the indoor air is dry. Check the assembly condition of humidifier filter 1⃞ Pull out the water tank. 2⃞ Pull out the tray. * Carefully lift the tray up to pull it out without spilling the water. 3⃞ After assembling both ends of the humidifier filter case to the tray hook accurately as shown in the picture, assemble the tray to the main unit.
Humidifier function Supplying water to water tank 1⃞ Open the cap of the water tank and fill tap water to the water tank. Caution 2⃞ • Do not use anything other than tap water. It is difficult for bacteria to grow in tap water because it is treated with chlorine. But it is easy for fungus or bacteria to grow in other types of water (Well water, purified water, mineral water etc.). • Do not use boiled water above 40˚C, aroma oil, chemical, contaminant and air freshener.
Humidifier function Humidifier operation 1⃞ Press the ON/OFF button. 2⃞ Press the HUMIDIFYING button. * The user cannot set to the specific level of humidity the user wants. When the humidifier operates, the mist may not be visible as it is humidified in fine particles. 3⃞ Press the Fan speed button. * The fan speed can be set in 3 levels for the humidifier function. Caution • If the water tank is empty, the no water lamp will be turned on and the buzzer will go off, but the operation will not stop.
Cleaning Tray, humidifier filter 1⃞ Pull out the water tank. 2⃞ Pull out the tray. 1⃞ 2⃞ * Carefully lift the tray up to pull it out without spilling the water. 3⃞4⃞ 3⃞ Separate the humidifier filter and tray lid. 4⃞ Clean the tray and humidifier filter. * After cleaning, always close the tray lid. * If the humidifier function is not used for a long period of time, frequently dry the humidifier filter and wipe the water of the tray. Assemble the humidifier filter.
Exterior and dust sensor cleaning method Exterior and dust sensor cleaning method Wipe the exterior of the unit with a soft cloth using warm water and a mild detergent. Caution • Do not use harsh cleaners or very hot water. Do not wash in the dishwasher. • Never pour water onto the unit; it could damage the internal components and create a shock and fire hazard. Dust sensor cleaning method The dust sensor is a device that senses the minute and large dust particles.
Exterior and dust sensor cleaning method Air outlet cleaning method Separate the air outlet cover by grabbing its protruded section and lifting it up. 2⃞ Clean the safety grille with the soft brush and the suction inlet of vacuum cleaner. 3⃞ Wash the air outlet cover with soft brush in the running water. 4⃞ When assembling after the cleaning, settle the front section of the air outlet cover after inserting the cover rear section to suit to the product as shown in the right side figure.
Filter cleaning and exchange 1⃞ In case of under operation, be sure to OFF the power supply. Open the front panel by pulling it forward. 2⃞ Remove the filter case by pulling it up. 3⃞ Separate the pre filter from the filter case by pulling it forward. 4⃞ Clean the disassembled filter in accordance with the filter cleaning method in the next page. Caution 1⃞ 2⃞ 3⃞ 4⃞ • For washable filter, please dry it completely in a shade without any dampness.
Filter cleaning and exchange Cleaning method of various filters Type of filter Classification Washing & replacement cycle Pre filter For washing About a month washing Cycle Allergy filter For washing About a month Washing Cycle Deodorization filter HEPA filter About 6 months washing cycle Pre filter 2 Owner’s Manual Allergy filter Clean the Pre-filter with a vacuum cleaner or a soft brush, and when the contamination is severe, use a neutral detergent and water to clean it off.
Filter cleaning and exchange Cleaning method of tray and humidifier filter Classification Replacement cycle Cleaning cycle Cleaning method - • When filling the water tank, fill up to 1/3 and rinse it 4-5 times to wash it out. • Dissolve 10g of neutral detergent or citric acid in 1L of warm water for 1-2 hours, and then use the cleaning brush to clean the parts. After cleaning, make sure to rinse sufficiently. (After cleaning the filter, close the front panel.
Storage 1⃞ Operate the air cleaner for more than 1 hour on a clear day and then press the On/Off button to stop the operation. 1 2⃞ Unplug the power plug. 3⃞ Clean and protect the unit's mainframe. Cover the unit while storing for an extended period of time. When cleaning, wipe the main body with smooth cloth. Care and Cleaning Otherwise, there is the worry of external damage due to the scratch etc.
Troubleshooting before calling for service If abnormality is occurred, confirm the following items in advance before requesting to the customer care center. Symptom Air Purifier will not start. Confirmation ● ● ● Turning off presetting cannot be performed. Air Purifier function is not working well. Is the power plug unplugged? Whether a power cut occur? Whether the front panel open or not? Turning off presetting cannot be performed.
Troubleshooting before calling for service Problem The rate of water decreasing in the water tank is slowing or not decreasing at all. Humidity level does not increase. Possible cause ● ● Is the humidifier filter correctly inserted in the tray? Is there a high level of alien particles in the humidifier filter? Clean the humidifier filter. If the filter is too dirty, replace the filter. ● ● Is the room too wide? ● Use the product by referring to the applied area.
Confirmation items before reporting the failure Problem Air outlet has an abnormal odor Sensor indicator has problem. Possible cause ● Are you using the product where there is smoke or odor? ● ● Are you using the product where there is a food smell? ● ● Did you completely dry the washable HEPA filter? ● ● Is the water in the humidifier tray contaminated? Clean the tray and water tank, and then refill the water. ● Dust sensor keeps high level always.
Product Specification The external dimension, design and product standard can change to improve the quality of the product. Model Name PH-U450 Series Power Supply 220-240 V ~ 50/60 Hz Weight of Product Appearance Size(mm) Power consumption 12 kg 425 (Width) x 635 (Height) x 305 (Depth) 45 W ※ The rating on the manual displays a range for possible usage, so it could be different from the rating on the label, which displays the rating of the using region on the product.
MEMO 42 Air Purifier
MEMO Owner’s Manual 43
