Pentair FLECK 5800 SXT - Salt Amount Definition

Installer Manual Fleck 5800 - SXT - System sizing
32 / 92 Ref. MKT-IM-004 / A - 18.04.2017
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
refill
= V
WB
/ Q
BLFC
V
WB
= D
Salt
x BV / S
sol
Note
When calculating the time required to draw the brine, take into account that the volume of
brine [V
brine
] will be 1.125 bigger than the water refilled.
4.3. Salt amount definition
The salt settings is done through the controller programming.
with:
T
refill
: refill duration [min]
V
WB
: Volume of water to be refill to prepare the brine [L]
Q
BLFC
: BLFC flow rate [L/min]
with:
V
WB
: Volume of water to be refill to prepare the brine [L]
D
Salt
: Salt dosage per litre of resin [gr/L]
BV: Bed volume [L]
S
sol
: 360gr/L - Solubility of salt per litre of water