30
Tapping protective function
If tapping should occur during the enable time of thermal disinfection,
ZIR07 CIRCULATION FLOW RATE
plus
STE15 MIN. TAPPING RATE
, thermal disinfec-
tion will be interrupted and restarted after ending the tapping volume less than
STE15 MIN. TAPPING RATE
if there is no enable by the time program yet. The minimum
holding time then begins again.
Information
If thermal disinfection was carried out successfully, this is indicated with the date under
STA03 THM.DISINFECTION INFO
.
If thermal disinfection could not be carried out successfully, i.e. the nominal temperature
value
LEG01 THM.DISINFECT. TEMP.
was not reached or not held for the defined time
LEG02 TEMP. HOLDING TIMETHM DIS
, information "
INFO 54
" will appear. This remains
until the next successful thermal disinfection or a reset.
8.6
Primary protective function
Functions
8.6.1 Cycling the primary pump
Cycling the primary pump
If the temperature on the primary side is not sufficient in order to reach the nominal tem-
perature value on the TPV, the following protective mechanisms will be activated.
Cycling mode of the primary pump; after a defined switch-on time
STE12 MIN. CYCLING
RUN-TIME
and falling below the nominal temperature value at the TPV sensor for the pri-
mary supply, the pump is disabled for a definable time:
STE13 MIN. CYCLING OFF-TIME
.
This way, energy can be provided again on the primary side.
8.6.2 Nominal value reduction
Nominal value reduction
This function is used when the heat source on the primary side is too strongly discharged.
If the desired minimum setpoints are fallen below at the TPV or TO1 sensor, a set point
reduction is activated. "TWWset reduced" is the current temperature at TPV or TO1 minus
the minimum temperature difference
STE14 MIN. TDIFF HEAT EXCH.
[TPV; TO1]min. set point
=
BAS01 TSET DOMESTIC HOT WATER
+
STE14 MIN. TDIFF HEAT EXCH.
=
SEK06 TSET CIRCULATION
+
STE14 MIN. TDIFF HEAT EXCH.
=
LEG01 THM.DISINFECT. TEMP.
+
STE14 MIN. TDIFF HEAT EXCH.
... falls below for 1 K, a set point reduction is activated TWWsoll, this reduces the actual
temperature for TPV or TO1 minus the minimale temperature difference
STE14 MIN.
TDIFF EXCHANGER.
On this reduced set point the fresh water station works to rech the
value for the output TWW to reach and hold it.
An active set point reduction is indicated in the status of the fresh water station
STA01
STATUS
with "
8
".
8.6.3 Min. heat source temperature
Minimum heat source temperature
If the set point reduction does not result in the temperature recovery on the primary side,
the fresh water station or primary pump will be switched off when the
NAC05 TMIN.HEAT
SOURCE
at sensor TO1 at the top of the tank is fallen below.
TO1 <
NAC05 TMIN.HEAT SOURCE
, then FRIWA/ PP off.
If charging is canceled, this is indicated in the status of the fresh water station
STA01 STA-
TUS
with "
11
".
Содержание TACOTHERM FRESH PETA ES 5941S
Страница 40: ...Manufacturing or Sales...
