Installer manual Fleck 5600 SXT - System sizing
Ref. MKT-IM-013 / E - 23.09.2020
33 / 104
Salt amount
[g/L
resin
]
Corresponding resin
exchange capacity
[g/L
resin
] as CaCO
3
°f.m
3
[per L
resin
]
°dH.m
3
[per L
resin
]
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
To calculate the system mass capacity:
M
capacity
= V
resin
× 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
]
To calculate the system combined capacity:
C
capacity
= V
resin
× 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]
To calculate the system volume capacity:
V
capacity
= M
capacity
/ TH
inlet
Or
V
capacity
= C
capacity
/ TH
inlet
with:
V
capacity
: system volume capacity [m
3
]
M
capacity
: system mass capacity [g as CaCO
3
]
C
capacity
: system combined capacity [°f.m
3
or °dH.m
3
]
TH
inlet
: inlet water hardness [mg/L as CaCO
3
or °f or
°dH]
Mandatory
If a mixing device is set on the valve before meter, use TH = TH
INLET
- TH
OUTLET
!
Having determined the previous capacity allows the operator to know the service cycle duration.
4.2.4
Valve configuration
Knowing the volume of resin, tank size and specifications of the resin, it is possible to determine
the required valve configuration. The resin specification will give the backwash velocity, as well as
the brine draw and slow rinse velocity that must be respected in order to ensure a proper
