Siemens AVS75.39 Series User Manual page 78

With primary controller /
system pump
Remote control
78 / 239
Siemens
Building Technologies
The setting defines whether the primary controller/system pump has an impact on
the cooling circuit.
No
Hydraulically speaking, the cooling circuit is connected upstream of the primary
controller/system pump and cannot draw any "precontrolled" cooling energy. The
refrigeration request is always forwarded to the producer located upstream of the
primary controller.
Yes
The cooling circuit is connected downstream from the primary controller/system
pump. The primary controller ensures control of a valid refrigeration request, or the
system pump is activated.
Line no. Operating line
969 Optg mode changeover
None ¦ Off ¦ Automatic
In the case of external changeover via inputs H1 / H2 / H3, the operating mode to
be used can be selected.
User manual RVS43.345
The settings in detail
CE1U2354en_021
2013-09-02