STIEBEL ELTRON SOM 7 PLUS, Эксплуатация и установка

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System layout 10
Arr 10
VBus
10 9
The controller calculates the temperature difference between
collector sensor S1 and tank sensor S2. If the difference is
larger than or identical to the adjusted switch-on temperature
difference (DT O), the solar pump will be operated by relay 1,
and the tank will be loaded until the switch-off temperature
difference (DT F) or the maximum tank temperature (S MX)
is reached.
If the maximum collector temperature (CMX) is reached, the
solar pump will be operated by relay 1 and the 3-way-valve will
S1
S2
S4 / TR
R1
S3
R2
Display Channels
Channel
Description Terminal Page
COL x Temperature collector S1 37
TST x Temperature tank S2 37
S3 x Temperature sensor 3 S3 37
S4 x Temperature sensor 4 S4 37
TR x* Temperature return sensor S4 37
n % x Pump speed relay R1 30
h P1 x Operating hours R1 R1 38
h P2 x Operating hours R2 R2 38
kWh x* Heat quantity kWh - 38
MWh x* Heat quantity MWh - 38
TIME x Time - 34
be operated by relay 2 in order to direct the surplus energy to a
heat dump. For security purpose this will be carried out only if
the tank temperature is below the non-adjustable emergency
shutdown of 200 °F.
Sensors S3 and S4 can optionally be connected for
measurement purposes.
If energy metering (OHQM) is activated, sensor S4 has to be
connected as return sensor.