STIEBEL ELTRON SOM 7 PLUS Bedienung Und Installation Seite 33

2.5.3 Solar heating system and reheating
with one cylinder, three sensors and reheating. As an option, the sensor S4/TRL can be used for capturing the heat yield.
Symbol Description
S1 Collector sensor
S2 Cylinder sensor, bottom
S3 Cylinder sensor, top
S4/TRL Sensor for the heat statement (option)
R1 Solar circuit pump
R2 Reheating primary pump
2.5.4 Solar heating system and stratification cylinder heating
with 1 cylinder, 3 sensors, 1 solar pump and three-way valve for cylinder stratification. As an option, sensor S4/TRL
can be used for the heat statement.
R1
S4 / TRL
Symbol Description
S1 Collector sensor
S2 Cylinder sensor, bottom
S3 Cylinder sensor, top
S4/TRL Sensor for the heat statement (option)
R1 Solar circuit pump
R2 Three-way valve
S1
R1
S4 / TRL
S1
R2
S3
R2
S2
S3
S2
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