Pentair FLECK 3150 NXT, Installer Manual

Page: 124 / 182

Installer manual Fleck 3150 NXT/NXT2 - Commissioning
124 / 182 Ref. MKT-IM-010 / C - 18.10.2019
l) With the brine tank completely refilled and full of salt, adjust the safety brine valve
in the brine well. Make sure the overflow elbow is installed above the float level
and the discharge point.
m) After the softener has been running a few minutes in service, proceed to hardness
test on outlet water to make sure the water is treated as per requirements.
7.1.2 Activating a multiple valves system (Systems #5, #6, #7, #8, #9 and #14)
a) Follow the previous procedure for each tank of the system.
Info
In order to save 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
addresses (NXT only, NXT2 featuring automatic valve addressing) 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 all tanks in service are equal after start up, then the system
could show the unwanted situation where several tanks are fully exhausted at the same
time, leading to uncertain treated water quality for a short period. This can be avoided
by manually balancing the capacities of the different tanks at start up. Note that this
operation may require to be done regularly during normal service life of the system.
Example:
Assuming a 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%). The tanks in service
will reach exhausted state at different moment.
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.
7.2 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 odour 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.