6.1.1. Radiator<br>

### 6.1.1. Radiator

Radiator is a terminal unit the size of which the application tries to determine or to verify the imposed size. You should indicate an excessive pressure-reducing device on the radiator or one of its circuit pipes. The appearance of a radiator placed on a plan view differs from that of a radiator on a schematic view.

Button on the “Central” toolbar:

Appearance on screen (plan view):

integrated radiator:

radiator with side connection:

Appearance on screen (schematic view):

integrated radiator:

radiator with side connection:

tube-type radiator: ,

segmented radiator:

bathroom radiator:

modular radiator:

“Radiator” component data:

TU symbol

Text field. You can enter a caption that will identify the radiator unambiguously.

In room

Text field. You cannot enter the name of the room where the radiator is installed – you must select the room from a list. When connections are checked, the radiators are automatically assigned to rooms within the area of which they are placed in plan view.

Contribution [%]

Numerical field. Radiator output as percentage of heat demand in room. The default setting (auto) assigns contribution on the basis of heat loss calculation results, which take into account other heat sources in the room.

Q/F [W]

Numerical field. Required output of terminal unit. Value in brackets indicates that output determined from contribution.

Type

Selection field. Radiator type – select from selected manufacturer’s catalogue or from among radiators not in catalogue.

Size

Selection field. Specified radiator size. You can select from list or retain the default size (size).

Size limits

Compound field. Manner of sizing radiator with existing restrictions being accounted for. After clicking on an arrow to the right of the field, a new window is opened where you can specify the height, length and depth of radiator (H, L and D fields displayed in window are described below). You can specify the way the radiator is to be sized when restrictions are imposed: specify size, select the smallest radiator from a range or fit the radiator to a recess.

The “User specified” option enables selection of radiator in accordance with specified dimension – the first radiator found that matches the specified dimension is selected. You can specify one, two or all three dimensions of radiator.

The “Smallest in range” option enables selection of the smallest dimension within specified range determined by minimum and maximum dimensions. This means that the first radiator found that matches “Lmin” (minimum dimension within range) is selected.

The “To recess” option enables selection of radiator that matches the dimensions of recess (recess dimension and occupied dimension is specified). This option enables selection of radiator that has maximum possible dimensions to match the recess. This means that the first radiator found that matches “Lmax” (maximum dimension within range) is selected.

H user specified, H min/max, H recess

Compound field. Height of radiator. Depending on the radiator sizing method, the title changes appropriately.

L user specified, L min/max, L recess

Compound field. Length of radiator. Depending on the radiator sizing method, the title changes appropriately.

D user specified, D min/max

Compound field. Depth Length of radiator. Depending on the radiator sizing method, the title changes appropriately.

Connection type

Compound field. Select terminal unit connection type and specify, if necessary, allowances for sizing: enclosure type and location of radiator – a window opens after clocking a button to the right of the field.

Terminal unit conn. system

Selection field. System of terminal unit connection. Select from a list, depending on selected pipe system and connection systems defined therein.

ti/qi [0C]

Temperature in room where the radiator is installed.

Availability

Selection field. When sizing a radiator, it can be looked for among all radiators available in catalogue (complete range of delivery) or among preferred radiators only (in stock). You can also leave the choice to be made in calculation options.

To left of riser

Selection field. Specifies whether the radiator is installed to the left of the riser.

H [m]

Numerical field. Elevation of radiator. It can be determined automatically (value in brackets) or specified by the user. To revert to automatic determination enter “?”.

Dt/Dq [0C]

Numerical field. Specified temperature drop across the radiator. Value in brackets indicates the default value.

Rad. share in 1-pipe system

Numerical field. Share of flow in radiator in the total flow in a single pipe systems. The value is assigned by default to all new radiators, and then can be modified individually. Value in brackets indicates default value determined from the value specified in general data.

Pipe feed diam.

Selection field. Specify type or diameter of pipe feed for radiators not in catalogue.

Component status

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

Label type

Selection field. Select from list the type of radiator label in drawing. After selecting “Configure”, a component appearance window is opened, where you can create (by copying) and configure the appearance of components in the drawing. After specifying a new label, it is then available in a pull down list in the table.

Advance dwg.

Selection field. Select from list the radiator circuit pipe on plan view to be drawn beside the radiator. The default setting is the return pipe-run.

advance: supply advance: return

Fixing point

Selection field. Specify where in the drawing the fixing point is to be located. The fixing point is the point from which the radiator will be enlarged / reduced when its size is changed.

¨ There is a function that enables fast arrangement of radiators under all external windows. To use this function select “Insert radiators under external windows” from the “Components” menu. You can also use , buttons in the “Central” toolbar.