Rinsing And Replacing The Carbon Element - Vision VZN-441H Owner's Manual

VZN H SERIES

Rinsing and Replacing the Carbon Element

1. Turn off the water supply to the system and turn off the
water to all downstream equipment.
2. Open the Rinse Ball Valve and allow the system to
drain to ensure the permeate tank is empty.
3. Press and hold the RED Pressure Relief Button on the
top of each of the Carbon Element Housing to lower the
water level inside the housings by 2 to 3 inches.
4. Remove the Carbon Element Housing (Figure 9).
5. Empty any water into a drain and discard the old
Carbon Element.
6. Inspect the O-ring on the Carbon Element Housing
(Figure 9). 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 Carbon Element Housing.
8. Install the new Carbon Elements into the Carbon
Element Housing.
NOTE: Make sure the Gasket remains in place in the
recessed grooves on both ends of the Carbon Element.
9. Screw the Carbon Element Housing (containing the
Carbon Element) into place on the Carbon Element
Head. The Housing will come to a hard stop at the end
of the thread. Use a Filter Wrench if necessary.
NOTE: Do NOT overtighten the Carbon Element Housing.
10. Direct water from the Rinse Ball Valve to a drain.
NOTE: It is important to direct the System Outlet to the
drain as the water resulting from the flush should NOT be
used.
11. Ensure the Rinse Ball Valve is open. Then turn on the
water supply to the VZN system. Allow water to flow
through the Carbon Element and Housing to clear out
trapped air and any carbon fines that may be present.
12. To help remove trapped air from the Carbon Element
Housing, press the RED Pressure Relief button on the
top of the Housing until water just begins to come out.
13. Rinse the Carbon Element for at least 5 minutes.
NOTE: Do NOT consume the water used for rinsing the
Carbon Element.
14. When the rinsing is complete, close the Rinse Ball
Valve and turn on the water to all downstream
equipment.
15. The system is now ready for use.
MAINTENANCE (continued)
16
O-Ring
Carbon
Element
Housing
Figure 9. Carbon Element
RED Pressure
Relief Button
Carbon
Element
Head
Gasket
Carbon
Element
P/N 1011103 Rev. E 05/13