Excess Heat Draw; Buffer Storage Tank / Primary Controller - Siemens RVS41.813 User Manual

Supervision

Excess heat draw

Buffer storage tank / primary controller

With buffer
With primary controller /
system pump
96/258
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HVAC Products
2. The start value used for the flow temperature setpoint (TVEm) is the value of the
first profile day.
During the time the floor curing function is performed, the heating circuit flow
temperature is compared with the flow temperature setpoint according to the profile or
the manually selected flow temperature setpoint.
In the case of mixing heating circuits, the flow temperature sensor is monitored. With
pump heating circuits, the common flow temperature is used in place of the flow
temperature.
The temperature is regarded maintained if the deviation from the setpoint is less than 2
K. The period of time during which the flow temperature is correct is added up by a
meter.
If the required temperature is not reached after more than 1 hour, the counter is
stopped until the deviation is smaller again than 2 K.
If the floor curing process is terminated, the days completed are saved and retained
until the function is started the next time.
Days completed = (hours completed / 24) rounded off
Line no.
HC1 HC2 HCP
861 1161 1461
Excess heat draw can be triggered from some other device via bus or through storage
tank recooling.
When dissipation of excess heat is activated, it can be drawn by space heating. This
can be selected separately for each heating circuit.
Off.
Excess heat draw is deactivated.
Heating mode
Excess heat is drawn only when the controller operates in heating mode.
Always
Excess heat is drawn in all operating modes.
Line no.
HC1 HC2 HCP
870 1170 1470
872 1172 1472
If there is a buffer storage tank, state whether the heating circuit can draw heat from it.
When using alternative heat sources, the buffer storage tank temperature is used as a
control criterion for the release of additional heat sources.
Select whether the heating circuit shall receive its heat via the primary controller or with
the help of the system pump (depending on the type of plant).
User manual RVS61.843, RVS41.813
6 The settings in detail
Operating line
Excess heat draw
Off.
Heating mode
A lways
Operating line
With buffer storage tank
With primary controller / system pump
CE1U2355en_02
28. September 2009