Vizion VZN-421H-T5, Owner'S Manual

VZN T5 SERIES

16

P/N 1011066 Rev. G 12/13

Rinsing and Replacing the Carbon Element

NOTE: Remove the TAC Cartridge Element, if present, 

and re-attach the TAC Housing before proceeding.

  1.  Turn off the water to the system by closing the Inlet Ball 

Valve and Outlet Ball Valve.

  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: Direct the Rinse Ball Valve to a drain. Do NOT use  

the water resulting from the flush procedure.

  11.  Open the Rinse Ball Valve. Turn on the water to the 

system by slowly opening the Inlet Ball Valve. Allow 

water to flow through the Carbon Element and Housing. 

This clears out trapped air and any carbon fines.

  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.  Re-install the TAC Cartridge Element into the TAC 

Housing with the arrow on the cartridge pointing up. 

Reattach the TAC Housing to the system.

  15.  When the rinsing is complete, close the Rinse Ball 

Valve and open the Outlet Ball Valve.

  16.  The system is now ready for use.

O-Ring 

Carbon 

Element 

Housing 

Carbon

Element

Carbon 

Element 

Head 

RED Pressure  

Relief Button 

Gasket

MAINTENANCE (continued)

Figure 9. Carbon Element