Installer Manual Fleck 3900 - NXT - Programming
68 / 126 Ref. MKT-IM-015 / B - 08.06.2018
6.5.12. System capacity
Set the capacity of the tank where the valve is installed.
Note
On the basis of system capacity, safety coefficient and inlet water hardness, the controller
calculates the volume of water that the system can treat between 2 regenerations.
This volume corresponds to the volume the tank could treat if the inlet water hardness is 1°F, 1°TH
or 1°dH.
6.5.13. Safety coefficient
Set the percentage value by which the total capacity is reduced as a safety coefficient.
6.5.14. Inlet water hardness
Set the input water hardness in the unit set on chapter 6.5.11. Display format, page 67.
6.5.15. Trip points setting
Set the flow rate and switching delay when another tank is switched to service.
Note
Only visible in system 14.
T Set the unit capacity with , and .
U Press to validate the selection and advance to the next
parameter.
Example: 3000 g of CaCO
3
of
capacity.
UNIT CAPACITY:
003000 gCaCO3
V Set the safety coefficient with , and .
→ Can be adjusted from 0 to 50%.
W Press to validate the selection and advance to the next
parameter.
No safety factor programmed.
CAPACITY SAFETY
FACTOR 00%
X Set the inlet water hardness with , and .
Y Press to validate the selection and advance to the next
parameter.
FEED WATER
HARDNESS:0030mgL
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