Siemens AVS75.39 Series User Manual page 142

Comparison temp
transfer
Intermediate circuit
Intermediary circuit-
overshoot
142 / 239
Siemens
Building Technologies
For the transfer of heat, the desired DHW sensor can be selected to get a
comparative temperature.
B3
The transfer is carried out if sensor B3 is at least 1K below the present transfer
setpoint and the buffer storage tank sensor B4 is warmer at a minimum by the
transfer increase as sensor B3.
If sensor B3 is not installed, there will be no transfer of heat.
Charging by the generator and simultaneous heat transfer are not possible.
B31
The transfer is carried out if sensor B31 is at least 1K below the present transfer
setpoint and the buffer storage tank sensor B4 is warmer at a minimum by the
transfer increase as sensor B31.
If B31 is not installed, sensor B3 is used for the transfer of heat.
Charging by the generator and simultaneous transfer of heat are possible,
provided the transfer is effected via the separate transfer pump Q11.
B3 and B31
Both sensors B3 and B31 are considered for the transfer.
The transfer is carried out if sensor B3 is at least 1K below the present transfer
setpoint and the buffer storage tank sensor B4 is warmer at a minimum by the
transfer increase as sensor B3.
Transfer is completed as soon as sensor B31 achieves the present transfer
setpoint.
If B31 is not installed, sensor B3 is used for the transfer of heat.
Charging by the generator and simultaneous heat transfer are not possible.
Line no. Operating line
5140 Intermediate circuit boost
B36
Q3
Q33
To charge via intermediate circuit / heat exchanger, the flow temperature in the
intermediate circuit must be higher than the demanded DHW setpoint by the value
entered here since not all the energy can be transferred via the heat exchanger.
The set value is added to the request.
User manual RVS43.345
The settings in detail
B3
B31
CE1U2354en_021
2013-09-02