Salt Amount Definition - Pentair FLECK 3150 NXT Installer Manual

To calculate the refill duration:
The refill flow rate is controlled by the refill controller (BLFC). The relation between the BLFC size,
the tank size and the resin volume is given in the valve specifications.
To calculate the refill duration:
T = V / Q
refill WB BLFC
V = D x BV / S
WB Salt sol
Note
When calculating the time required to draw the brine, take into account that the volume of
brine [V
brine
4.3.

Salt amount definition

The salt settings are controlled through the controller programming. See 4.2.3. Resin exchange
capacity and capacity of the unit, page 26.
Ref. MKT-IM-010 / B - 28.05.2018
] will be 1.125 bigger than the volume of water refilled.
Installer Manual Fleck 3150 - NXT - System sizing
with:
T : refill duration [min]
refill
V : Volume of water to be refill to prepare the brine [L]
WB
Q : BLFC size [L/min]
BLFC
with:
V : Volume of water to be refill to prepare the brine [L]
WB
D : Salt dosage per litre of resin [g/L]
Salt
BV: Bed volume [L]
S sol : 360g/L - Solubility of salt per litre of water
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