Buffer Storage Tank / Primary Controller; Remote Control - Siemens RVS41.813 User Manual

Flow temp diff dewpoint

Buffer storage tank / primary controller

With buffer
With primary controller /
system pump

Remote control

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Siemens Switzerland Ltd
HVAC Products
(dT TVKw)
BZ948
dT TVKw Increase of flow temperature setpoint
r.h. Relative humidity
OL Operating line
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).
The function can be deactivated with setting – – –.
The humidity sensor must be assigned to one of the Hx inputs as "Rel room humidity
10V", and a room temperature sensor must also be available (assigned to the Hx input
as "Room temp 10V" or room unit).
T
TTP
TVKw Flow temperature setpoint cooling
TTP Dewpoint temperature
TA Outside temperature
OL Operating line
Line no. Operating line
962 With buffer
No ¦ Yes
963 With primary controller / system pump
No ¦ Yes
If there is a buffer storage tank, this setting must be made to define whether the cooling
circuit can draw cooling energy from it.
It is to be set whether the DHW storage tank receives its heat via the primary controller
or with the help of the system pump (depending on the type of plant).
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 RVS61.843, RVS41.813
6 The settings in detail
BZ947
r. F. %
100%
TVKw
BZ 950
TA
CE1U2355en_02
28. September 2009