Table of Contents
Advertisement
12. 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.
13. 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)
1. 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
Parallel systems
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 (NXT) or in the
programming mode (NXT2). 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 remaining capacity at 50% of its
real capacity in the diagnostic mode (NXT) or in the programming mode (NXT2). 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 remaining capacity adjustment in the diagnostic mode (NXT) or in the programming mode
(NXT2)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.
Ref. MKT-IM-026 / C - 15.12.2020
Installer manual Fleck 2750 NXT/NXT2 - Commissioning
125 / 170
Advertisement
Table of Contents
