culligan us-550 Manual Do Utilizador

Installation and Operating Instructions
Under Sink Water Filter 
Model US-550

1

11/03   145765   Rev C

Choose the appropriate filter cartridge for your needs and install in housing according
to the Cartridge Replacement instructions (page 3) before proceeding with 
installation. See Cartridge Selection Guide (below) to determine the best 
cartridge for your filtration needs.

Pressure Range:

30–125 psi (2.1–8.6 bar)

Temperature Range: 40–100°F (4.4–37.7°C)

• filter housing
• mounting bracket kit

• screwdriver
• file
• pencil
• pipe cutter or hacksaw
• 2 adjustable wrenches
• 3/8-inch compression fittings for standard 3/8-inch under-sink installation
• 3/8-inch plastic tubing
• Teflon

®

tape

• SW-1 housing wrench
• FT-10 faucet kit (recommended for use with D-40 filter cartridge)

Precautions

WARNING:

Do not use with water that is microbiologically unsafe or of

unknown quality without adequate disinfection before or after the
system.  Systems certified for cyst reduction may be used on disinfected
waters that may contain filterable cysts.

CAUTION:

Filter must be protected against freezing, which can cause cracking of

the filter and water leakage.

CAUTION:

The rubber o-ring provides the water-tight seal between the cap and

the bottom of the housing.  It is important that the o-ring be properly
seated in the groove below the threads of the housing or a water
leak could occur.

CAUTION:    

Because of the product’s limited service life and to prevent costly repairs

or possible water damage, we strongly recommend that the bottom of
all plastic housings be replaced every ten years.  If the bottom of your
housing has been in use for longer than this period, it should be replaced
immediately.  Date the bottom of any new or replacement housing to
indicate the next recommended replacement date.

• For cold water use only.
• Make certain that installation complies with all state and local laws and 

regulations.

•  The contaminants or other substances removed or reduced by the selected 

cartridge are not necessarily in your water. Ask your local water municipality
for a copy of their water analysis, or have your private well tested by a 
reputable water testing lab. 

• After prolonged periods of non-use (such as during a vacation) it is 

recommended that the system be flushed thoroughly.  Let water run for 5–6
minutes before using.

• The filter cartridge used with this system has a limited service life.  Changes in

taste, odor, color, and/or flow of the water being filtered indicate that the 
cartridge should be replaced.

• Some harmless bacteria may attack cellulose media cartridges (such as the D-

10).  If your cartridge seems to disintegrate or develops a musty or moldy
odor, switch to a synthetic media cartridge or call Technical Support.

The US-550 is Tested and Certified by NSF International to NSF/ANSI Standards
42/53 with cartridges D-10, D-20, D-30 and D-40. 
See Performance Data Sheet in Manual for specific claims.

Cartridge Selection Guide

Select the right cartridge

D-10

D-20

D-30

D-40†

for your water needs.

155528

155532

155465

155466

Sediment

•

•

•

Bad taste & odor

•

•

•

•

Chlorine: taste & odor

•

•

•

•

Giardia/Cryptosporidium

•

•

Asbestos

•

•

Lead/Mercury

•

Lindane/Atrazine

•

filter life in gallons (months)* 250 (3)

1000 (12)

1000 (12)

600 (6)

service flow rate gpm (Lpm)** 1.0 (3.8)

1.0 (3.8)

0.9 (3.4)

0.6 (2.3)

* Filter cartridge life varies depending on filter type, usage and water conditions.
**Flow rates measured at 60 psi (4.1 bar).

†

Contains built in flow control at 0.6 gpm (2.3 Lpm). For use with separate faucet 

(FT-10) in under-sink installations.
NOTE:  Substances reduced are not necessarily in your water.  Filter must be maintained
according to manufacturer’s instructions, including replacement of filter cartridges.