Electrical engineering - Basics Page 35

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5.2 Wiring diagrams

Wiring diagrams give an overview over the conductors and connections between individual electric components and their interior circuits. They also show the internal and external connections of electric installations. However, wiring diagrams do not always show how the particular installation or system is actually functioning. Further explanations, e.g. tables, etc.., are frequently added to wiring diagrams in order to make the function and effects of circuits more clear.

The wiring diagram 51 (see below) belongs to the connection diagram 50 of a heating system with a variable boiler temperature control (weather-led). In this installation the burner can be controlled with the S-B switch and the circulation pump with the S-HP switch. Furthermore, the whole system can be manually controlled with the S1 switch.

Diagram 51: Example for a wiring diagram


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