Medium's Evaporation Temperature; Speed Control; Yield Measurement - Siemens RVS41.813 User Manual

Medium's evaporation temperature

Speed control

Pump speed
min / max

Yield measurement

Antifreeze
Siemens Switzerland Ltd
HVAC Products
T
Tkol
TSpSi
TSp
On
Off
TSpSi Storage tank safety temperature
TSp Storage tank temperature
TKolUe Collector temperature for overtemperature protection
TSpmax Maximum charging temperature
Tkol Collector temp
On / Off Collector pump
T Temperaturet
Line no. Operating line
3860 Evaporation heat carrier
If there is a risk of the heat-carrying medium evaporating due to high collector
temperatures, the collector pump is deactivated to prevent overtemperatures. This is a
protective pump function.
Line no. Operating line
3870 Pump speed min
3871 Pump speed max
The speed range of the solar pump is limited by the minimum and maximum
permissible speed.
Line no. Operating line
3880 Antifreeze
3881 Antifreeze concentration
3884 Pump capacity
To ensure accurate solar yield measurement, both additional sensors (B63 in the solar
flow and B64 in the solar return) should be connected. If one or both sensors are
missing, the controller uses collector sensor B6 or B61 and the respective storage tank
sensor B31 or B41 for the calculation.
Accurate measurements are made with B63/B64.
The 24-hour and total solar energy yield (8526 and 8527) is calculated, based on these
data.
Since the mixing ratio of the collector medium has an impact on heat transmission, the
type of antifreeze used and its concentration must be entered in order to be able to
determine the energy yield.
User manual RVS61.843, RVS41.813
6 The settings in detail
1°C
TSp
TSpMax
Time
TKolUe
1°C
t
CE1U2355en_02
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