Activating A Multiple Valves System; Additional Tips; Sanitization; Disinfection Of Water Softeners - Pentair FLECK 2910 NXT Installer Manual

7.1.2. Activating a multiple valves system (Systems #5, #6, #7, #9 and #14)
A Follow the previous procedure for each tank of the system.
A
Note
In order to gain time, program first all tanks as single system #4. Proceed to start up as
described above for each tank, then program the correct system type and valve address and
eventually set/trip points in case of system #14.
7.1.2.1 Triplex and quadruplex system
After start up is complete and system is synchronized according to the system type program, adjust
manually the tanks remaining capacities per tank in the diagnostic mode. If the capacity of the tanks
in service are not all equal, the system can arrive in the unwanted situation where the two tanks in
service are exhausted at the same time. One of those would regenerate and the second would stay
online, therefore delivering water of uncertain quality until the other tanks has finished the
regeneration. This can be avoided by manually balancing the capacity.
Example:
The system is triplex (system #5 or #9). The valve with address #1, is set capacity at 50% of its real
capacity in the diagnostic mode. The valve with address #2 is set it at 75% and the valve with address
#3 is left at the real capacity. (Depending on the resin volume, you may also choose to balance on 33%,
66% and 100%).
Once regenerated, each tank will restart its cycle with 100% of its capacity as programmed.
The capacity adjustment in the diagnostic mode is valid only for the current cycle, it does not affect
not modify the programmed system capacity.

7.1.3. Additional tips

• You can start programming from the beginning by resetting the amount of media, see chapter
6.6. Resetting the controller, page 63.
7.2.

Sanitization

7.2.1. Disinfection of water softeners

The materials of construction of the modern water softener will not support bacterial growth, nor will
these materials contaminate a water supply. In addition, during normal use, a softener may become
polluted with organic matter, or in some cases with bacteria from the water supply. This may result
in an off-taste or odor in the water.
Thus, your softener may need to be disinfected after installation. Some softeners will require periodic
disinfection during their normal lifetime. Consult your installing dealer for more information on
disinfecting your softener.
Depending on the conditions of use, the softener type, the type of ion exchanger, and the disinfectant
available, a choice can be made among the following methods.

7.2.2. Sodium or calcium hypochlorite

These materials are satisfactory for use with polystyrene resins, synthetic gel zeolite, greensand and
bentonites.
5.25% Sodium hypochlorite
If stronger solutions are used, such as those sold for commercial laundries, adjust the dosage
accordingly.
Ref. MKT-IM-002 / A - 18.11.2016
Installer Manual Fleck 2910 - NXT - Commissioning
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