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UFL-420/440 WATER FILTRATION SYSTEM
properly for the plumbing line. This valve will allow for
easier servicing and future cartridge change out.
DRAIN LINE PLUMBING
The drain line is used to flush away the particle buildup
when cleaning the filter. The drain line must be able
to support the flow rate when the system flushes. The
flow rate from the flush depends on the inlet water pres-
sure, inlet pipe size, and system selected. It is recom-
mended that the drain line be as large as, or larger
than, the inlet plumbing line. The drain line should be
as short as possible, sloping downward without kinks
or loops. Be sure that the drain used is not blocked or
restricted.
The filter system must be protected from possible back
contamination by the installation of an air gap between
the drain connection of the system and the drain
(Figure 4). This gap in the line, with no physical contact
between the system and sewer, prevents contamination
of the system in the event of a backed-up sewer.
NOTE: Make sure that the end of the drain line is
positioned and secured at least 2 inches above
the drain so that the water flow is directed into the
drain, without splashing.
INSTALL THE CARTRIDGE
Install the cartridge into the housing by following the
instructions on page 15 in the Changing the Cartridges
area of the Maintenance section in this manual. Make
sure that all O-rings are lubricated with a food-grade
silicone lubricate before assembling
FLUSHING THE SYSTEM
To ensure that the highest quality water is produced
from the system, the plumbing leading from the filter
system must be flushed clear of all debris after the
system is hooked up. After making the connection
to the outlet of the filter system, open a faucet or tap
closest to the filter system, then slowly open the inlet
water valve. Allow the pipe to flush until all debris is
removed.
The unit also must be flushed to remove air and the
shipping/storage solution. For maximum quality, the
permeate water produced during the flushing procedure
must be discarded. Direct this permeate water to drain.
CAUTION
Ingesting the protective solution may cause irrita-
tion of the gastrointestinal tract, colic, diarrhea, or
other similar symptoms
INSTALLATION (continued)
10. Release the Program button. Flushing is
10
1. Plug the power cord into the appropriate electrical
outlet. The unit will power on and the LED display
will display the following for about two seconds
each:
•
•
followed by its time settings in seconds
•
and its time setting in minutes or hours.
The and sequence repeats for about 20 sec-
onds after which the switches to Flush Mode ()
before returning to the Flush Interval Mode ().
The time setting for will be displayed and the
decimal point will flash in one second intervals.
2. Open the tap or faucet closest downstream to the
filter system.
3. Slowly open the inlet water valve and allow water
to enter the system.
4. Press and hold the Program button. After 6-7
seconds, the drain valve will open and will
appear on the display.
5. Continue holding the Program button down for at
least 60 seconds to keep the drain valve open.
This flushes air out of the center of the hollow
fibers. The drain will remain open as long as the
Program button is pressed. Check to make sure
that the drain water is directed into the drain with-
out splashing.
6. Release the Program button. This closes the
drain valve. Water should continue to flow
through the system and out of the open tap.
Allow water to flow out of the tap for at least 15
minutes at maximum flow rate.
7. Close the tap and let the system stand without
water flow for 15 minutes to allow any trapped air
to come out of the hollow fibers. Check for leaks
at all fittings.
8. After 15 minutes without water flow, open the
tap for 5 minutes to allow any trapped air to be
flushed out. Close the tap.
9. Once again, press and hold the Program button
for at least 60 seconds to flush out any remaining
air from the system.
complete.
P/N 1010873 Rev. C 05/05
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