Pentair Siata V132 SFE - Page 27

Installer manual Siata V132 - SFE - System sizing
Ref. MKT-IM-003 / B - 19.04.2017 27 / 88
To calculate the system mass capacity:
M
capacity
= V
resin
x C
resin ex
To calculate the system combined capacity:
C
capacity
= V
resin
x C
cor resin exi
To calculate the system volume capacity:
V
capacity
= M
capacity
/ TH
inlet
or
V
capacity
= C
capacity
/ TH
inlet
Caution
If M
capcacity
is in [kg] the value need to be multiplied by 1000.
Note
If a mixing device is set on the valve, the water hardness will be different.
Having determined the previous capacity allows the operator to know the service cycle duration.
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
]
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]
with:
V
capacity
: system volume capacity [m
3
]
M
capacity
: system mass capacity [kg as CaCO
3
] or [°F.m
3
or °dH.m
3
]
C
capacity
: system combined capacity [°F.m
3
or °dH.m
3
]
TH
inlet
: inlet water hardness [mg/L as CaCO3] or [°F or °dH]
A
A