Before You Begin; Water Pressure; What You Will Need - LG LFX33975ST Owner's Manual

INSTALLATION 21
Connecting the Wafer Line
Before You Begin
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.
_ Z_ CAUTION
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.
_ CAUTION
Do not install the icemaker tubing _n
areas where temperatures fall below
freezing.
Water Pressure
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 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 ~ 4.2
kgf/cm 2, less than 2.0~3.0 sec. to fill a cup of 7 oz
capacity).
CAUTION
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 _ (takes
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.
• Atl installations must be in accordance
with local plumbing code requirements.
What You Will Need
®
®
Copper Tubing, 1A in, outer diameter, to
connect the refrigerator to the water
supply. Be sure both ends of the tubing
are cut square.
.,,,42
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 wan after installation.
Power drill.
1/2 in. or adjusfabme
wrench.
®
®
Fmaf blade and PhiHips
head screwdrivers.
Two 1/t in. outer
dlarne_er compression
nu_s and 2 ferrumes (sleeves) to connect the
copper tubing to the shutoff valve and
the refrigerator water valve.