None ¦ Dhw Storage Tank ¦ Buffer; Charging Time Relative Prio Min; 3826 F Waiting Time Relative Prio; Waiting Time Relative Prio Min - Siemens Albatros2 RVA78.690 User Manual

Charging prio storage
tank
Charging time relative
prio
Waiting time relative prio
28 / 64
Siemens
Building Technologies
6.6.2 Priority
Line no. Operating line
3822 Charging prio storage tank
None
DHW storage tank
Buffer storage tank
3825 Charging time relative prio
3826 Waiting time relative prio
3827 Waiting time parallel op
3828 Delay secondary pump
If a plant uses several heat exchangers, it is possible to set a priority for the
integrated storage tanks, which defines the charging sequence.
None
Every storage tank is charged alternately for a temperature increase of 5 °C at a
time, until every setpoint of level A, B or C (see below) is reached. The setpoints of
the next higher level are approached only when all setpoints of the previous level
have been reached.
DHW storage tank
During solar charging, preference is given to the DHW storage tank. At every level
A, B or C (see below), it is charged with priority. Only then will the other consumers
of the same level be charged. As soon as all setpoints of a level are attained, those
of the next level are approached, whereby priority is again given to the DHW
storage tank.
Buffer storage tank
During solar charging, preference is given to the buffer storage tank. At every level
A, B or C (see below), it is charged with priority. Only then will the other consumers
of the same level be charged. As soon as all setpoints of a level are attained, those
of the next level are approached, whereby priority is again given to the buffer
storage tank.
Storage tank setpoints:
Level DHW storage tank
A 1610 Nominal setpoint
B 5050 Charging temp max
C 5051 Storage tank temp max
If the preferred storage tank cannot be charged in accordance with charging
control, priority is transferred to the next storage tank for the period of time set (e.g.
temperature differential between collector and storage tank too great).
As soon as the preferred storage tank (according to setting "Charging prio storage
tank") is again ready to be charged, the transfer of priority will immediately be
stopped.
If the parameter is deactivated (---), priority always follows the settings "Charging
priority storage tank".
During the period of time set, the transfer of priority is delayed. This prevents
relative priority from intervening too often.
Solar compact controller
The settings in detail
Buffer storage tank
Setpoint (drag indicator)
4750 Charging temp max
4751 Storage tank temp max
CE1U2396en
18.08.2010