Siemens AVS75.39 Series User Manual page 77

Flow temp diff dewpoint
Buffer storage
tank/primary controller
With buffer storage tank
Siemens
Building Technologies
The dewpoint temperature is determined on the basis of the relative humidity of the
indoor air and the associated room temperature.
To prevent the formation of condensation on surfaces, a minimum limit is applied to
the flow temperature so that it remains above the dewpoint temperature by the
value set here (950).
Function can be switched off using setting "- - -" .
The humidity sensor must be assigned to an Hx.. input as "Relative room humidity
10V", and a room temperature sensor must also be available (assigned to the H..
input as "Room temperature 10V" or room unit).
TVKw Flow temperature setpoint cooling
TTP Dewpoint temperature
TA Outside temperature
BZ Operating line
Line no. Operating line
962 With buffer
No ¦ Yes
963 With prim contr/system pump
No ¦ Yes
If a buffer storage tank is installed, it must be selected whether the cooling circuit
may draw cooling energy from it.
No
Hydraulically speaking, the cooling circuit is connected upstream of the buffer
storage tank, which means that it cannot draw any cooling energy from it. The
refrigeration request is forwarded to the producer upstream of the buffer storage
tank.
Yes
The cooling circuit is connected after the buffer storage tank. It draws cooling
energy from the buffer storage tank and its temperature request is taken into
account by buffer management.
User manual RVS43.345
The settings in detail
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CE1U2354en_021
2013-09-02