LG Electronics 74407

User Manual - Page 40

For 74407.

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40


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

plumber to correct water hammer before installing the
water supply line to the refrigerator.
 To prevent burns and product damage,
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 is turned OFF at the control
panel.
 Do not install the icemaker tubing in areas
where temperatures fall below freezing.

 The water pressure must be between
20 and 120 psi. If the refrigerator is installed in an area
with low water pressure (below 20 psi), you can install a
booster pump to compensate for the low pressure.
If a  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  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

If the water pressure from the reverse osmosis system is
less than 20 psi or 138 kPa or 1.4 kgf/cm² (takes more

 

 Allow the storage tank on the reverse osmosis system to

 If the issue concerning water pressure from reverse

 All installations must be in accordance with local
plumbing code requirements.
 Wear eye protection during installation to
prevent injury.

 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,

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

refrigerator water valve.
 If your existing copper water

end, you will need an adapter
(available at plumbing supply
stores) to connect the water line
to the refrigerator OR you can

a tube cutter and then use a

 
to the cold water line. The

inside diameter of 5/32 in. at the point of connection
to the COLD WATER LINE.

are included in many water
supply kits. Before purchasing,
make sure a saddle-type
valve complies with your local
plumbing codes.
 A Self Piercing Saddle Type Water Valve should
not be used.


When using any electrical device (such as a power
drill) during installation, be sure the device is battery
powered, double insulated or grounded in a manner
that will prevent the hazard of electric shock.
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