4.12. Connection points<br>

## 4.12. Connection points

Connections between components are made already at the stage of creating the layout of the system. Component connection points are shown in the form of squares.

An unconnected point is represented by an empty square:

Connected points are represented by smaller filled squares: .

This system of presenting connections facilitates fast spotting out of unconnected components (also in small scale) and correcting connections before starting calculations.

! You must remember that no more than 4 pipe-runs may be connected in one point. Fifth connection cannot be executed and this is indicated on the diagram:

! Pipe-runs may consist of several segments. To differentiate between connection points of two pipe-runs and internal nodes within a pipe-run, the latter are represented by diamonds: