3.1.1. Drawing sheets<br>

### 3.1.1. Drawing sheets

Components of the system and of the drawing base, that is all graphical objects, are placed on drawing sheets (called sections in previous version). The project file may include many drawing sheets (always at least one). If there are more sheets than one, the so-called remote connections may be made between components on separate sheets. If plan views of storeys are used, each storey has a separate sheet.

! Plan view sheets created in succession always correspond to subsequent storeys (from lowermost to uppermost).

When creating a new sheet, decision must be made whether it will contain a plan view or a schematic view – the choice determines the availability of components for inserting into the drawing and of some functions (e.g. determination of component elevation from vertical position in the drawing).

The system (installation), meant here as a set of interconnected circuits of heating or cooling medium supplied from one source, terminal units and fittings, may be drawn on one or more sheets. Numbering of pipe-runs and designations of terminal units on each sheet are independent. One or more sheets may be treated as auxiliary drawings, and the objects in these sheets are not taken into account during diagnostics and calculations.

Exclusive assignment of a component to one drawing sheet does not prevent that component from being displayed both on a plan view and on schematic view, as it is possible to create the so-called shadow components. Shadow is assigned to the original component. Shadows are optional and may be assigned to any selected components of the system.