Return Flow Switch; Thermal Disinfection; Thermal Disinfection Process - Taconova ES 5941 Manuel D'utilisation

ES 5941
6.6

Return flow switch

Return flow switch
Function
6.7

Thermal disinfection

Thermal disinfection

6.7.1 Thermal disinfection process

Function
Operating instructions
40
The return flow switch serves to ensure the temperature layering in
solar tanks, for example. The changeover valve VSR can charge the
return water in the tank at 2 different heights.
Parameter SCH04 can be used to enter a fixed value in order to define
the return flow switch independently of the tank sensor.
TPR <TU1 + 2 K, then VSR active; the return is charged in the
n
bottom zone.
n
TPR> TU1 + SCH01 DIFF. RETURN SWITCH, then VSR off; the return is
charged in the top zone.
This can be used if ZIR00 CIRCULATION MODE is not set to 0.
The following selection is possible:
n
0: no function/function deactivated.
n
1: Disinfection ON.
n
2: Circulation support.
WARNING!
If tapping takes place during disinfection, this
results in exposure to an increased protective tem-
perature which could cause scalding depending on
the disinfection temperature.
If activation occurs via the time program LEG05 THM.DISINF.TIMEPRO-
GRAM or is effected manually, thermal disinfection is carried out. The
domestic hot water is heated to the setpoint temperature LEG01
TEMP TERM. DISINFECTION and is maintained at the chosen sensor for
the LEG02 HOLD TIME TEMP. THE.DIS. The circulation pump is active
during the protective function.
In order to reach the required setpoint temperature at the reference
sensor, the setpoint at TWW is boosted. The value for the charging
boost LEG03 TEMP.RISE TSET THM.DIS can be adjusted. The circulation
sensor TBZ serves as the reference sensor for reaching the protective
temperature.
Functions
04/2021 Item no. 215790 EA no. 1321