Rinsing And Replacing The Tac Cartridge; System Sanitization - Vision VZN-441H Owner's Manual

Rinsing and Replacing the TAC Cartridge

(VZN-441H-T5 ONLY)
1. Turn off the water supply to the system and turn off the
water to all downstream equipment.
2. Press the FLUSH button to initiate the flush cycle.
Repeat several times to ensure the permeate tank is
empty.
3. Press and hold the Red Pressure Relief Button on the
top of the TAC Housing (Figure 11) to lower the water
level inside the housing by 2 to 3 inches.
4. Remove the TAC Housing (Figure 10).
5. Empty any water into a drain and discard the old TAC
Cartridge (Figure 11).
6. Inspect the O-ring on the TAC Housing. Replace the
O-ring if it is cracked, twisted, or missing.
7. Lubricate the O-ring with an approved food grade
lubricant and install into the TAC Housing.
8. Install the new TAC Cartridge into the TAC Housing.
NOTE: Make sure the End Seal gaskets are in place in
the recessed grooves on both ends of the TAC Cartridge
(Figure 12).
9. Screw the TAC Housing (containing the TAC Cartridge)
into place on the TAC Head. The Housing will come
to a hard stop at the end of the thread. Use a Filter
Wrench if necessary.
10. Direct the water from the Rinse Ball Valve to a drain.
NOTE: It is important to direct the system outlet to drain
as the water resulting from the flush should NOT be used.
11. Slowly turn on the water to the system and allow water
to flow through the TAC Cartridge and Housing to clear
out trapped air and any carbon fines that may be pres-
ent.
12. To help remove trapped air from the TAC Housing,
press the Red Pressure Relief button on the top of the
Housing until water just begins to come out.
13. Rinse the TAC Cartridge for at least 5 minutes.
NOTE: Do NOT consume the water used for rinsing the
TAC Cartridge.
14. When the TAC Cartridge rinsing is complete, close the
Rinse Ball Valve and turn on the water to all down-
stream equipment.
15. Reconnect the water to service. The system is now
ready for use.
P/N 1011103 Rev. E 05/13
MAINTENANCE (continued)
Figure 11. Replacing the TAC Cartridge (VZN-441H-T5 only)

System Sanitization

The system and downstream plumbing should be sanitized
every six months. When necessary, follow the procedure in
Sanitizing the System and Lines in the Installation section
of this manual.
17
Figure 10. Removing the TAC Housing (VZN-441H-T5 only)
O-ring
TAC
Housing
VZN H SERIES
TAC
Cartridge
TAC
Housing
Red Pressure
Relief Button
TAC
Head
Gasket
TAC
Cartridge