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Replacing the Ultra Filter Cartridge
NOTE: Always install new Carbon Element and new
TAC Cartridge Element after replacing the Ultra Filter
Cartridge.
1. Turn off water to the system by closing the Inlet Ball
Valve and Outlet Ball Valve.
2. Press the FLUSH button to flush the system and relieve
pressure. Repeat several times to ensure permeate
tank is empty.
3. Remove the Carbon Element and remove the TAC
Cartridge Element if present.
4. Locate the long hooked tubing on the right and discon-
nect the long end from the tee by pushing the collet
squarely against the face of the fitting.
5. With the collet pushed in place, pull the tubing from the
fitting with your right hand.
NOTE: Water may drain from the tubing as it is removed.
Make sure there is enough room next to the system to
remove the cartridge.
6. Remove the Snap Ring (Figure 8) from the Ultra Filter
Housing. Grab the raised lug with a pair of pliers and
pull towards the center of the End Cap and away. The
Snap Ring should lift out of its groove.
7. Remove the End Cap, End Cap O-Ring, and Cartridge
(Figure 8) from the housing.
NOTE: If the Cartridge does not easily come out of the
Housing, remove the opposite End Cap for assistance
during Step 5.
8. Inspect the Large End Cap O-rings and End Cap O-ring
for nicks or cuts. Replace as needed.
9. Lubricate all O-rings with a food-grade silicone lubri-
cant. Apply a light coating of lubricant to the inside
center tube at both ends of the new cartridge.
10. Record the serial number of the new cartridge. The
cartridge serial number is engraved on one end of the
outer tube (for example: 05K 12013).
11. Install the End Cap O-ring on the End Cap and insert
the Large End Cap into the end of the new cartridge.
12. Position the new cartridge and End Cap at the housing
and gently insert into the housing.
13. Press the End Cap into position until it is fully seated
and the Snap Ring groove is visible.
14. Install the Snap Ring by guiding the non-lugged end
into the groove first, pushing outward and working
around the ring until it snaps into place.
P/N 1011103 Rev. E 05/13
MAINTENANCE
Snap Ring
End Cap
End Cap
O-Rings
Cartridge
O-Ring
Ultra Filter
Housing
Figure 8. Replacing the Ultra Filter Cartridge
NOTE: Make sure that the Snap Ring is fully seated
before turning the water on.
15. Reattach the tubing that was removed in Steps 3 and 4.
Be sure the tubing is pushed past the O-ring.
NOTE: Make sure the fitting is completely inserted onto
the tubing past the O-ring. A loose connection results in
leaking at the point of connection.
16. Rinse the new Ultra Filter Cartridge before placing the
system back into operation. Follow the Rinsing the
Ultra Filter Cartridge, Sanitizing the System and
Lines, and Rinsing the Carbon Element and TAC
Cartridge procedures in the Installation section of this
manual to complete the cartridge change.
17. When rinsing is complete, repressurize the system by
opening the Outlet Ball Valve then opening the Inlet Ball
Valve.
15
VZN H SERIES
Ultra Filter
Cartridge
Cartridge
O-Ring
End Cap
O-Rings
End Cap
Snap Ring
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