Maximum Charging Time; Maintained Secondary Circuit - Siemens Synco 700 Basic Documentation

Settings
Forced charging
Manual forced charging
Extra configuration
Settings
Aborting
Settings
Building Technologies
HVAC Products
Main menu > Settings > DHW > DHW
Operating line
Forced charging
If the storage tank shall already be fully charged at the beginning of the day (to the
normal setpoint ), the setting to be selected is With 1st change to normal .
This setting will initiate forced charging the first time the DHW time switch changes over
to the normal setpoint .
Forced charging can also be triggered manually via a pushbutton. For that, a digital
input is to be configured.
Inputs > Forced charging
No settings are required when triggering forced charging via a pushbutton.

10.4.3 Maximum charging time

To prevent the heating circuits from being locked or limited by DHW priority for ex-
tended periods of time, the charging time can be limited.
If, on completion of the selected maximum charging time, charging is still active, stor-
age tank charging will be aborted.
In that case, charging will be locked during the maximum charging time. On completion
of the waiting time, charging control will again take place via the storage tank tempera-
ture.
Main menu > Settings > DHW > DHW
Operating line
Charging time max
Charging time limitation is not active in the following cases:
• In Protection mode
• In summer operation
• When there is no DHW priority
• With shifting DHW priority, when the heat source supplies sufficient amounts of heat
• When using setting "----"
Forced charging will stop an active charging time limitation.

10.4.4 Maintained secondary circuit

T
The maintained secondary circuit protects the storage tank's stratification by supplying
to the storage tank only water of higher temperatures (in accordance with the setpoint).
Modular Heating Controller RMH760B
10 DHW heating
Range
Never /
With 1st change to normal /
With every change to
normal
Assign terminal
Range
---- / 5...250 min
Factory setting
Never
Factory setting
----min
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CE1P3133en
05.02.2007