Terminal Allocation - STIEBEL ELTRON SOM 7 PLUS Bedienung Und Installation

2.5 Terminal allocation

2.5.1 Solar heating system with one cylinder,
1 pump and 3 sensors. As an option, sensor S4/TRL can be used for capturing the heat yield.
Symbol Description
S1 Collector sensor
S2 Cylinder sensor, bottom
S3 Cylinder sensor, top (optional)
S4/TRL Sensor for heat meters (option)
R1 Solar circuit pump
2.5.2 Solar heating system with two cylinders,
heat transfer from the new to the existing cylinder, 4 sensors and 2 pumps.
R1
Symbol Description
S1 Collector sensor
S2 Cylinder sensor, bottom
S3 Cylinder sensor, top
S4 Cylinder sensor 2
R1 Solar circuit pump
R2 Heat transfer pump
32
S1
R1
S4 / TRL
S1
S3
S2
S3
Cylinder 1
S2
R2
Cylinder 2
S4