3.2. Associations between plan views and schematic views<br>

## 3.2. Associations between plan views and schematic views

If a radiator heating system design is to include plan views and schematic views, then one of the conventions described below should be adopted before you start drawing the system. The selected convention should correspond to the nature of the project and the degree of detail required in drawings:

- arrangement of connections described on schematic view, which covers the entire system and consists of original components only. Plan views include shadow components that are necessary for the fitter: radiators, riser symbols, layout of distribution network. The correctness of connections on plan views is of no significance to calculations. This convention is adequate for large systems with side-connection radiators, typical double-pipe risers and distribution network on lowermost storey. Such systems are typical of older type of multi-apartment buildings,

- arrangement of connections described, as far as possible, on plan views, with fragments not shown on plan views described on schematic view. Suitable for systems where distribution network and risers are not distinct, where most information on system layout and radiator connections is derived from storey plan views and where layout of each storey may be different. Use of remote connections is envisaged,

- arrangement of connections described on plan views, with schematic view supplementing the plan views with fragments not shown on plan views (original components on schematic view) and fragments shown on plan views (shadows on schematic view). Automatic display of system fragments, which in formal terms is a set of shadow components downstream of specific remote connection, may also be utilized here.

If the project includes radiant heating, much information that is necessary to design floor heating is provided on plan views only. In this case the leading role of plan views is unquestionable. Depending on the nature of the system, the diagram may be appended with the radiator part on the plan view and / or schematic view. The schematic view can include a fragment that describes the individual radiant heating circuits (shown as shadows) and connections thereof with the manifold (also shown as shadow) and further part of the system. From the first pipe-run downstream of manifold on you are free to specify where the original component is and where the shadow is.