Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
Arrangement 4: Solar system with store loading in layers
The controller calculates the temperature difference between collector sensor S1
and store sensors S2 and S3. If the difference is larger than or identical to the cor-
responding adjusted switch-on temperature differences (DT1O / DT2O), the solar
pump will be activated by relay 1, and the corresponding store zone will be loaded
until the switch-off temperature difference (DT1F / DT2F) or the maximum store
PWM 1/2
VFD
S1
S4 / VFD / TFL
R2
R1
S4 / VFD / TR
24
temperature (S1MX / S2MX) is reached. The priority logic causes priority loading
of the upper store zone, if possible. In that case, the 3-port valve will be operated
by relay 2.
If heat quantity measurement (OHQM) is activated, S4 and VFD are used as the flow
and return sensors respectively.
VBus
9 10
S3
S2
Publicité
Table des Matières
