Siemens RVS41.813 User Manual page 95

Manually
Siemens Switzerland Ltd
HVAC Products
The temperature change always takes place at midnight. The start day (day 0), that is,
the period of time from activation to midnight does not count as a functional day.
The setpoint used for the start day is the value of the first functional day.
During "Floor curing mode", the profile temperature is limited within the 2 limit values
"Flow temperature setpoint maximum" (TVMax) and "Flow temperature setpoint
minimum" (TVmin).
The function is terminated when the functional days have elapsed or when it is
deactivated with the parameter.
There is only one profile which applies to all 3 heating circuits.
Start in the summer
In the case of heat pumps controlled according to the return temperature, the switch-on
point for the heat pump may not be reached in the summer.
For this reason, the return temperature needed for switching on the heat pump is
calculated based on the flow temperature setpoint minus the required temperature
differential (parameter 5801). If the temperature acquired by the return temperature
sensor lies above that temperature, the heat pump is not put into operation and,
therefore, the floor curing function started too late (only when the temperature increase
resulting from the floor curing function requires the heat pump to be switched on).
In manual operating mode, no temperature profile is completed. The required flow
temperature is set individually for every heating circuit, using parameter "Floor curing
setp manually".
Flow temperature
TVMax
TVMin
0 1
The function is terminated when the functional days (Mh) have elapsed or when
switching off with the parameter. The start day (day 0) does not count as a functional
day.
"Floor curing setp manually" (TVEm) can only be adjusted within the 2 limit values
"Flow temperature setpoint maximum" (TVMax) and "Flow temperature setpoint
minimum" (TVmin).
For the manual function, two values of the programmed profile are adopted:
1. The number of functional days represents the sum of functional heating plus floor
curing days (Mh=Fh+Bh).
User manual RVS61.843, RVS41.813
6 The settings in detail
TVEm
Mh
Day
z
95/258
CE1U2355en_02
28. September 2009