LG LNXS30866D Owners Manual - Page 18

18 INSTALLATION ENGLISH Water Pressure The water pressure must be 20~120 psi or 138~827 kPa or 1.4~8.4 kgf/cm² on models without a water filter and 40~120 psi or 276~827 kPa or 2.8~8.4 kgf/cm² on models with a water filter. If a reverse osmosis water filtration system is connected to your cold water supply, this water line installation is not covered by the refrigerator warranty. Follow the instructions carefully to minimize the risk of expensive water damage. If a reverse osmosis water filtration system is connected to your cold water supply, the water pressure to the reverse osmosis system needs to be a minimum of 40 to 60 psi (276~414 kPa or 2.8~4.2 kgf/cm², less than 2.0~3.0 sec. to fill a cup of 7 oz or 198 cc capacity). Caution Wear eye protection during installation to prevent injury. If the water pressure from the reverse osmosis system is less than 20 psi or 138 kPa or 1.4 kgf/ cm² (takes more than 4.0 sec to fill a cup of 7 oz or 198 cc capacity): yy Check to see if the sediment filter in the reverse osmosis system is blocked. Replace the filter if necessary. yy Allow the storage tank on the reverse osmosis system to refill after heavy usage. yy If the issue concerning water pressure from reverse osmosis remains, call a licensed, qualified plumber. yy All installations must be in accordance with local plumbing code requirements. What You Will Need yy Copper Tubing, ¼ in. outer diameter, to connect the refrigerator to the water supply. Be sure both ends of the tubing are cut square. yy To determine how much tubing you need: measure the distance from the water valve on the back of the refrigerator to the water supply pipe. Then, add 8 feet (2.4 m). Be sure there is sufficient extra tubing (about 8 feet [2.4 m] coiled into 3 turns of about 10 in. [25 cm] diameter) to allow the refrigerator to move out from the wall after installation. yy Power drill. yy ½ in. or adjustable wrench. yy Flat blade and Phillips head screwdrivers. yy Two ¼ in. outer diameter compression nuts and 2 ferrules (sleeves) to connect the copper tubing to the shutoff valve and the refrigerator water valve. yy If your existing copper water line has a flared fitting at the end, you will need an adapter (available at plumbing supply stores) to connect the water line to the refrigerator OR you can cut off the flared fitting with a tube cutter and then use a compression fitting. yy Shutoff valve to connect to the cold water line. The shutoff valve should have a water inlet with a minimum inside diameter of 5/32 in. at the point of connection to the COLD WATER LINE. Saddle-type shutoff valves are included in many water supply kits. Before purchasing, make sure a saddle-type valve complies with your local plumbing codes. Note A self piercing saddle type water valve should not be used.