LG LFX31915ST Owner's Manual page 21

This water line installation is not covered by the
refrigerator warranty. Follow these instructions
carefully to minimize the risk of expensive water
damage.
Water hammer (water banging in the pipes) in
house plumbing can cause damage to refrigerator
parts and can lead to water leakage or flooding.
Call a qualified plumber to correct water hammer
before installing the water supply line to the
refrigerator.
To prevent burns and product damange,
only connect the refrigerator water line to
a cold water supply.
If you use your refrigerator before connecting
the water line, make sure the icemaker power
switch is in the OFF (O) position.
Do not install the icemaker tubing in
areas where temperatures fall below
freezing.
A cold water supply. The water pressure must
be between 20 and 120 psi on models without
a water filter and between 40 and 120 psi 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 following 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 (2.8 kgf/cm
2
kgf/cm , less than 2.0~3.0 sec. to fill a cup of 7 oz
capacity).
Wear eye protection during installation
to prevent injury.
If the water pressure from the reverse osmosis
system is less than 21 psi or 1.5 kgf/cm
more than 4.0 sec to fill a cup of 7 oz capacity):
Check to see if the sediment filter in
the reverse osmosis system is blocked.
Replace the filter if necessary.
Allow the storage tank on the reverse
usage.
If the issue concerning water pressure
from reverse osmosis remains, call a
licensed, qualified plumber.
All installations must be in accordance
with local plumbing code requirements.
Copper Tubing, ¼ in. outer diameter, to
connect the refrigerator to the water
supply. Be sure both ends of the tubing
are cut square.
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.
Power drill.
½ in. or adjustable
wrench.
Flat blade and Phillips
head screwdrivers.
Two ¼ in. outer
diameter compression
nuts and 2 ferrules (sleeves) to connect the
copper tubing to the shutoff valve and
2
~ 4.2
the refrigerator water valve.
2
(takes