Siemens AVS75.39 Series User Manual page 121

DHW charging
DHW setpoint connection
Boiler setpoint DHW
charging
DHW charging with Q3
Charging of buffer
storage tank
Buffer storage connection
Boiler setpoint buffer
storage tank charge
Siemens
Building Technologies
Line no. Operating line
4134 Connection DHW stor tank
With B3 ¦ With B31 ¦ With B3 and B31
4135 Boiler temp setp DHW charg
Storage tank temp ¦ Storage tank setpoint ¦ Boiler setpoint minimum
4136 DHW charging with Q3
No ¦ Yes
The following loadable sensors must be selected for solid fuel boiler integration.
This setting selects the desired boiler setpoint calculated during DHW charging.
Storage tank temp
The boiler setpoint is calculated from DHW charging boost (BZ5020) and storage
tank actual value (as per line 4134).
Storage tank setpoint
The boiler setpoint is calculated from DHW charging boost (BZ5020) and storage
tank setpoint (nominal and legionella setpoint).
Boiler temp setpoint min
The boiler temperature setpoint corresponds to the minimum setpoint.
Determines whether charging pump Q3 is used by the solid fuel boiler for DHW
heating.
No
The solid fuel boiler charges the DHW storage tank directly via boiler pump Q10.
Charging pump Q3 is not controlled by the solid fuel boiler.
Yes
Charging pump Q3 must operate for DHW charging using the solid fuel boiler.
Line no. Operating line
4137 Connection buffer
With B4 ¦ With B42/B41 ¦ With B4 and B42/B41
4138 Boil temp setp buffer charg
Storage tank temp ¦ Storage tank setpoint ¦ Boiler temp setpoint min
The following loadable sensors must be selected for solid fuel boiler integration.
This setting selects the desired boiler setpoint calculated during DHW charging.
Storage tank temp
Boiler setpoint corresponds to storage tank actual value (as per line 4137).
Storage tank setpoint
The boiler temperature setpoint corresponds to the setpoint of the buffer storage
tank (slave pointer).
Boiler temp setpoint min
The boiler pump remains in operation as long as the boiler temperature lies above
the minimum setpoint.
User manual RVS43.345
The settings in detail
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CE1U2354en_021
2013-09-02