Instructions / Assembly

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8. Putting the Filter into Operation
A. Turn on water supply valve. Check for leaks. If it leaks, see Troubleshooting.
B. Rotate handle of drinking water faucet counter-clockwise to “on” position. Allow
water to run for 10 minutes to flush air and carbon fines (very fine black powder).
C. Check for leaks before leaving installation. If it leaks, see Troubleshooting.
Filter Cartridge Replacement
NOTE: It is recommended that the EZ-1 filter be replaced every year and the EZ-3/EZ-4
every 6 months, or when you notice a change in taste, odor, or flow of the water being
filtered.
1. Relieve Water Pressure
A) Turn off water supply to the filter and dispense water from drinking water
faucet until water flow stops to relieve pressure.
2. Remove Old Cartridge
NOTE: Place towel under the system to catch any water drips.
A) Turn arrow from locked to unlocked position.
B) Gently pull down to remove cartridge.
3. Install New Cartridge
A) Line up arrow with unlocked position on head and insert cartridge.
B) Turn to locked position.
C) Turn on water and check for leaks. If it leaks, see Troubleshooting.
D) Flush water through drinking water faucet for 10 minutes to remove
carbon fines. Check for leaks before leaving installation. If it leaks, see
Troubleshooting.
4. Replace Battery
A) Remove battery located in the slot just below the Culligan logo.
B) Remove spare battery from side of filter cartridge and put inside the slot
just below the Culligan logo. See diagram 6 in “Connecting the Faucet” on
page 3.
C) Once the battery is inserted correctly, the LED will blink red for about 30
seconds then it will shut off. To indicate the filter needs to be changed within
the next 30 days, it will flash yellow. When the filter needs to be changed
immediately, it will flash red. The light will keep flashing red until the battery
dies. The battery will need to be changed every time a filter is changed.
Alternate Installation
This alternate installation will require the purchase of additional fittings to be used with
the water supply adapter. It will be necessary to remove a section of the cold water
line to the main faucet. This cold water line is typically 1/2-inch inner diameter and
5/8-inch outer diameter plastic tubing. Adapter fittings for this tubing can be either
barb type (based on the inner diameter), or compression or quick connect (based on the
outer diameter).
See Illustration A for possible fitting combination. If barb fittings are used, hose clamps
must accompany them. If compression fittings are used, tube inserts should also be used.
Always use Teflon
®
tape on all male threaded connections.
a
R2
b
R3
a
b
Illustration A
Cold Water Line
Hose Clamp
Barb Adaptor
Female/Female
Adaptor
Barb Adaptor
Hose Clamp
Cold Water Line
Line to inlet of
filter head
Supply
Adaptor
(included)
4