Pentair FLECK 2910 NXT - Page 26

Installer Manual Fleck 2910 - NXT - System sizing
26 / 114 Ref. MKT-IM-002 / B - 23.05.2018
Resin exchange capacity as a function of the salt dosage:
To calculate the system mass capacity:
To calculate the system combined capacity:
Salt amount
[g/L
resin
]
Corresponding resin exchange
capacity in [g/L
resin
] as CaCO
3
°f.m
3
[per L
resin
]
°dH.m
3
[per L
resin
]
50 29.9 2.99 1.67
60 34 3.4 1.9
70 37.5 3.75 2.09
80 40.6 4.06 2.27
90 43.4 4.34 2.42
100 45.9 4.59 2.56
110 48.2 4.82 2.69
120 50.2 5.02 2.8
130 52.1 5.21 2.91
140 53.8 5.38 3.01
150 55.5 5.55 3.1
170 58.5 5.85 3.27
200 62.7 6.27 3.5
230 66.9 6.69 3.74
260 71 7.1 3.97
290 75.3 7.53 4.21
M
capacity
= V
resin
x C
resin ex
with:
M
capacity
: system mass capacity [g as CaCO
3
]
V
resin
: volume of resin [L]
C
resin ex
: resin exchange capacity [g/L
resin
as CaCO
3
]
C
capacity
= V
resin
x C
cor resin ex
with:
C
capacity
: system combined capacity [°f.m
3
or °dH.m
3
]
V
resin
: volume of resin [L]
C
cor resin ex
: corresponding resin exchange 
capacity [°f.m
3
/l or °dH.m
3
/l]