Pentek US-1500 - Manual (Page 5)

Electronic Monitor Operations
The US-1500 system includes an electronic monitor that alerts you
when it is time to change your filter cartridges. Both filter cartridges
should be changed at the same time to ensure that the monitor works
properly. The monitor measures actual water usage and is powered
by a single 9-volt battery.
How the Electronic Monitor Works
The filter cartridges in the US-1500 should be replaced every 1,000
gallons. The electronic monitor uses a combination of lights and
alarms to alert you at different stages during the life of the filter
cartridges. The lights are visible on the front panel of the filter system,
to the left of the blue reset button:
0-950 gallons
No alarm. Green light flashes when water is turned on.
950-1000 gallons
Alarm BEEPS ONCE when water is turned on. Yellow light flashes
when water is on.
1000+ gallons
Alarm BEEPS TWICE when water is turned on. Red light flashes when
water is on.
Low or Dead Battery
No alarm. No lights. Replace battery.
NOTE: Gallons used while battery is dead will register on meter when
battery is replaced
NOTE: To extend battery life, any sequence that includes any beeps
will not be repeated if water is turned on again in less than 15 minutes.
Reset Button
The blue reset button is located on the front panel of the system.
This button should only be pressed during initial installation or when
new filter cartridges are installed. After pressing and releasing
the button, you will hear two beeps followed by a sequence of two
green, two yellow, and two red lights. This combination of beeps and
lights indicates that the system has properly reset the internal gallon
counter.
Replacing the Battery
The battery should be replaced every time new filter cartridges are
installed or after 12 months of operation, whichever comes first.
Replacing Battery and Filters at the Same Time:
Install new 9-volt battery as described in Step Eight: Installing the
Battery on p. 4. Make sure to press blue reset button on front panel of
system when finished.
Replacing Battery Only:
Remove the old battery and install the new battery. DO NOT press the
reset button on the front panel of the system when finished.
Filter Cartridge Replacement
• Filter cartridges the US-1500 will last about 1,000 gallons or twelve
months before they need to be replaced. Filter cartridge life
varies depending on usage, and/or water conditions. Changes in
taste, color, and flow of the water being filtered indicate that the
cartridge should be replaced.
• Read all instructions before replacing filter cartridges.
1. Turn off cold water supply and open the drinking water faucet to
release pressure from system.
2. Unscrew and remove bottom of filter housing. Locate and remove
large O-ring, wipe clean of lubricant, and set aside. Repeat for
second housing.
3. Discard used filter cartridges. Using a non-abrasive sponge or
cloth, scrub the bottom of filter housings, O-ring grooves, and
caps with dish soap and warm water. Rinse thoroughly. Fill bottom
of each housing 1/3 full with water. Add 1 tablespoon of household
bleach and scrub to disinfect.
4. Lubricate O-rings with silicone grease. Insert each O-ring in
groove and press into place.
NOTE: This step is important to ensure a proper housing seal.
Make certain each O-ring is seated level in its groove or a leak
may occur.
5. Screw bottom of housings with bleach water onto caps without
filter cartridges and hand-tighten. DO NOT OVERTIGHTEN.
6. Turn on water supply. Let faucet run for about 10 seconds, then
turn off faucet and let stand for 20-30 minutes.
7. Turn on faucet and allow bleach water to run out (about 3-5
minutes).
8. Turn off water supply to system and open faucet to release
pressure. Remove bottom of housings and empty of water.
9. Insert each filter cartridge in bottom of appropriate filter housing:
P-250 Cartridge Set: white with green end caps in left housing,
gray plastic cartridge in right housing
NOTE: The filter cartridges should be installed with the black
gasketed ends pointing up.
10. Screw bottom of housings onto caps and hand-tighten. DO NOT
OVERTIGHTEN. Make certain cap standpipe slips into cartridge.
11. Open water supply and turn on drinking water faucet to release
pressure in system. Let faucet run for 5 minutes to remove trapped
air and carbon fines. Check system for leaks before leaving
installation.
NOTE:
• It is recommended that you run the tap at least 20 seconds prior to
using water for drinking or cooking purposes.
• Initially, filtered water may appear cloudy. If you set a glass
of water on a level surface, you should be able to watch the
cloudiness disappear from the bottom of the glass upwards.
This harmless cloudiness results from the release of trapped air
within the cartridge and will disappear within a few weeks after
installation.
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