Tapping Detection Using The Water Flow Sensor; Set Point Changeover - Samson TROVIS 5757-3 Configuration Manual

2.1.2

Tapping detection using the water flow sensor

In contrast to the DHW tapping recognition with a flow switch, the extent of tapping is indi-
cated as well as when the DHW tapping starts and finishes.
By activating the optimizing function Adaptation, the device adapts itself to changing net-
work conditions without having to change the control parameters (see section 2.6). The opti-
mizing function can only be activated when a water flow sensor is used.
NOTICE
!
Hot water being tapped is also detected when the maximum flow rate of the water flow sen-
sor is exceeded.
Functions
F05: Current input
F06: Function of current input
F07: Measuring range of current input

2.2 Set point changeover

The device can use two different set points, W1 and W2, for control, e.g. hot water tempera-
ture in normal used and for thermal disinfection. The set points changeover is implemented
by the binary input (BI1):
− BI1 open: W1 is the set point
− BI1 closed: W2 is the set point
It is only possible to change between set points W1 and W2 when the DHW temperature is
measured with a Pt 1000 resistance sensor (F05 - 0).
NOTICE
!
When the binary input BI1 is used, the current input cannot be used. It also not possible to
deactivate the function to maintain the heat exchanger at a constant temperature (see sec-
tion 2.3) when the binary input is used for set point switchover.
Functions
F05: Current input
F08: Function of binary input
KH 5757 EN
WE Configuration
1 F01 - 1
1 F02 - 1
1 F07 - 1
WE Configuration
0 F05 - 0
0 F08 - 1
Functions and parameters
7