Primary Controller/System Pump - Siemens AVS75.39 Series User Manual

Summary
Limitations of flow
temperature setpoint
Flow temp setpoint
min/max
Flow temp setp cooling
min
Frost protection for the
plant
88 / 239
Siemens
Building Technologies
6.8

Primary controller/system pump

Y20
Y19
Q14
B15
Line no. Operating line
2110 Flow temp setpoint min
2111 Flow temp setpoint max
2112 Flow temp setp cooling min
This limitation can be used to select a range for the flow temperature setpoint. If
the requested flow temperature setpoint reaches the relevant limit and the demand
for heat increases or decreases, the flow temperature setpoint is maintained at the
maximum or minimum limit.
TV
max
akt
TVmin
min
0 10 20 30
TVw Present flow temperature setpoint
TVmax Flow temp setpoint maximum
TVmin Flow temp setpoint minimum
This limitation can be used to define the low limit for the flow temperature setpoint
in cooling mode.
Line no. Operating line
2120 Frost prot plant syst pump
Off ¦ On
Defines whether to start up the system pump if plant frost protection is triggered.
User manual RVS43.345
The settings in detail
The primary controller allows lower or higher flow
temperatures by mixing to obtain flow temperatures for
heating/cooling zones with setpoints higher or lower than
those of the common flow.
The system pump can be used to overcome the
pressure drop to remote heating/cooling zones.
TVw
40 50 60 70
TVmax
80 90 100 °C
CE1U2354en_021
2013-09-02