6.1.7. Manifold<br>

### 6.1.7. Manifold

The program differentiates, in drawing terms, between apartment manifolds and manifolds used for networking the system, e.g. at basement level. To facilitate editing, a symbol for a pair of manifolds has been introduced. The symbol is a (inseparable) duplicate of the manifold for supply and return.

Manifolds in radiator heating do not have to be associated with equipment catalogues.

Buttons on the “Central” toolbar:

Appearance on screen (plan / schematic view):

“Manifold” component data:

Symbol

Text field. The symbol is defined automatically, when the manifold in the drawing is within a room, or it can be specified by the user. The symbol is used to identify the manifold when editing data and in the tables of results.

No. of outlets / No. of outlet pairs

Numerical field. The number of outlets must be consistent with the number of pipe-runs or pipe feeds connected. When drawing a system starting from the manifold, the number of outlets is automatically incremented (the manifold is enlarged) as required. The number may be specified – then all outlets must be connected or some of them must be defined as spare.

of that spare

Numerical field. Number of spare ports, which may be used later. These are not accounted for in calculations. When, for instance, only radiant heating calculations are done, they may be treated as designed for connecting additional radiators not included in the given project. This enables specifying in the bill of materials a manifold with the number of outlets greater than the number of connected heating circuits.

Manifold type

Selection field. Manifold type selected from catalogue. If “(default)” is specified, then the type specified in general data is adopted. If a manifold with control elements is selected, valve data are displayed in the table below the manifold data.

Supply/return arrangement

Selection field. The position of the supply part of the manifold in relation to the return part (for angle of 0°). This only has an effect on the drawing and enables the adaptation of the manifold drawing to the actual arrangement of the supply and return parts of the manifold. Opposite arrangement of the parts of the manifold may result in the crossing over of pipes in the drawing.

Cabinet type

Selection field. Select cabinet type from catalogue. If “(default)” is specified, then the type specified in general data is adopted.

Cabinet axis above floor [m]

Numerical field. Distance between cabinet axis and the floor. The required number of pipes to construct vertical route will be accounted for in the bill of materials.

Show RH data

Selection field. This field enables hiding or displaying additional data associated with radiant heating. The default setting is “No”. When you enter “Yes”, additional fields described above appear in the table.

Dt/Dq min OZ

Numerical field. Minimum temperature drop for HZ in occupied zone.

Dt/Dq max OZ

Numerical field. Maximum temperature drop for HZ in occupied zone.

Dt/Dq min PZ

Numerical field. Minimum temperature drop for HZ in peripheral zone.

Dt/Dq max PZ

Numerical field. Maximum temperature drop for HZ in peripheral zone.

Max DeltaP [kPa]

Numerical field. Maximum pressure drop in HZ.

Component status

Selection field. Select from list the current status of component: existing or under design. Affects only bill of material.

Draw label

Selection field. Specify whether the component label is to be drawn in the sheet. Then manifold symbol appears in the drawing. The default setting is “No”.