When there is no heating operation or when the flow temperature in the system is lower, the
storage tank charging pump is switched on immediately.
If a storage tank thermostat is used, the storage tank charging pump is switched on when the
temperature T =
Charging temperature – 5 °C is reached at sensor VFS.
Note!
The charging temperature VFS is controlled in system Anl 2 by the primary valve. In all the other
systems (Anl 4, 5, 7, 8, 9 and 10) the mixing valve regulates the charging temperature VFS.
When the
Circulations pump
function is active, the circulation pump remains in operation ac-
cording to the time schedule. The pumps is switched off when this function is deactivated.
The
Mixing valve always active
function allows the heat exchanger to maintain the charging
temperature using the mixing valve. The heat exchanger charging pump remains switched on
and the return flow temperature is not limited outside the times-of-use.
Stop storage tank charging
The controller stops charging the storage tank when the water temperature in the storage tank
measured at sensor SF1 exceeds the temperature T =
Charging tempe Hysteresis by
0.1 °C. When there is no heating operation or when the flow temperature demand in the system
is lower, the corresponding valve is closed.
The storage tank charging pump is switched off when the charging temperature at sensor VFS
has fallen below the
Storage tank charging pump deactivation limit; however, at the latest, af-
ter t
= 2 x Transit time of the primary valve.
In the default setting, the storage tank is charged by 5 °C to at least 50 °C when the storage tank
temperature falls below 40 °C. The charging temperature is 55 °C. On completing the storage
tank charging, the heating valve is closed and the charging pump continues to run until the
charging temperature falls below 50 °C.
Functions
WE
Configuration
Storage sensor SF1
ON
Co4 -> Fb00 = ON
Storage tank system
OFF
Co4 -> Fb10 = ON
Circulation pump
OFF
Co4 -> Fb04
Mixing valve always active
OFF
Co4 -> Fb11
EB 5179 EN
55
Appendix
Содержание TROVIS 5179
Страница 87: ...EB 5179 EN 87 Communication...
Страница 93: ...EB 5179 EN 93 System Anl 3 Option Type 5244 Type 5257 5 System Anl 4 Option Type 5244 Type 5257 5...
Страница 94: ...94 EB 5179 EN System Anl 5 Option Type 5244 Type 5257 5 System Anl 6 Option Type 5244 Type 5257 5...
Страница 95: ...EB 5179 EN 95 _ _ _ 3 1 2 System Anl 8 Option Type 5244 Type 5257 5 System Anl 7 Option Type 5244 Type 5257 5...
Страница 103: ...Fb Function WE Anl Comments Function block parameters Range of values default setting...