System Layout 7 - Viessmann SCU224 User Manual

SCU224

System layout 7

The controller calculates the temperature differences
between the collector sensors S1 and S3 and the tank
sensor S2. If the differences are larger than or identical to
the adjusted switch-on temperature difference (DT O), the
respective solar pump will be operated by relay 1 and / or
Arr 7
S1 S3
R1
R2
Display Channels
Channel Description
COL1 x Temperature collector 1
TST x Temperature tank
COL2 x Temperature collector 2
S4 x Temperature sensor 4
n1 % x Pump speed R1
n2 % x Pump speed R2
h P1 x Operating hours R1
h P2 x Operating hours R2
TIME x Time
22
|
relay 2, and the tank will be loaded until the switch-off
temperature difference (DT F) or the maximum tank tem-
perature (S MX) is reached.
Sensor S4 can optionally be connected for measurement
purposes.
S2
Terminal Page
S1 37
S2 37
S3 37
S4 37
R1 38
R2 38
R1 38
R2 38
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