6.2.6. Radiant heating circuit<br>

### 6.2.6. Radiant heating circuit

A radiant heating circuit can only be inserted into a “Schematic view” type sheet. RH project calculations are not done for this component. As a shadow it may have results assigned from the calculated original HZ or may have flow resistance and rate values specified by the user. In calculations the floor heating circuit is treated as a terminal unit with specified pressure and temperature drop. It is distinguished for identification in the drawing and, if necessary, for appending results of floor heating calculations executed with other program. These results may also be entered directly into terminal unit data.

Button on the “Radiant” toolbar:

Appearance on screen (schematic view):

“Circuit” component data:

Room symbol

Text field. Room symbol – text describing the room.

Circuit symbol

Text field. Floor heating circuit symbol. You can select it from the list, provided that the floor heating calculation results file has been loaded (in case of Instal-therm without the RH calculations feature).

Type

Selection field. Specify whether the heating circuit applies to floor heating or wall heating. After selection, the appearance of the component in the drawing is changed accordingly.

Q/F of terminal unit [W]

Numerical field. Required output of terminal unit.

Supply temp. [°C]

Numerical field. Supply temperature in the circuit. You can specify value other than default.

Dt/Dq [°C]

Numerical field. Specified temperature drop across terminal unit. Value in brackets is default value.

Circuit press. drop [kPa]

Numerical field. Pressure drop across heating circuit.

Water capacity [dm3]

Numerical field. Water capacity.

H [m]

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

Component status

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

Label type

Selection field. Select from list the type of circuit 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.