2.5.6. Inserting of internal ceilings between heated and non-heated storeys <br>

### 2.5.6. Inserting of internal ceilings between heated and non-heated storeys

Inserting of internal ceilings data between heated and non-heated storeys can be performed from the level of graphical storeys, inserting a partition in tabular manner. If the internal ceiling would be declared in Instal-therm, then it would be a graphical partition. For graphical partition there is a possibility of assigning of temperature on the other side in field “θos” or the type of non-heated/heated compartment in field “Ros”. In selected compartment on the basis of normative data the temperature will be determined. This compartment can be selected from the same flat/building or from outside of it.

! Graphical partitions loaded from Instal-therm program to Instal-heat&energy have locked possibility of type edition except of external wall, floor on the ground, roof, as well as internal wall, which is not assigned to two compartments. For graphical partition there is a possibility of temperature assigning on the other side or normative compartment type. The compartment can be heated/non-heated, selected from a flat or from outside of it.

To enter the data of internal ceilings between tabular and graphical storey:

1. Go to graphical storey located over (in structure tree underneath) the tabular storey “Cellar” and select here a compartment. In displayed window of data edition, in compartment table, in column “Name” select a partition definition – internal ceiling. Heat flow direction will be determined automatically on the basis of temperature difference between adjacent rooms.

Because this is a partition described in “Partition definitions”, fields concerning the value of heat transfer coefficient Uo is completed with declared value. The area of internal ceiling separating heated compartment from non-heated compartment is to be completed. It can be quickly calculated using the function assigned to the key F9. After completion of measurement, calculated area of ceiling will be inserted.

2. In field “Ros” it is necessary to select as adjacent a compartment located on non-heated storey.

3. Completing analogically data of internal ceiling in every graphical compartment, the graphical building structure will be connected with tabular storey.

There is also a simplified method of project completion with non-heated storeys by declaring the temperature on the other side of graphical horizontal partition or normative compartment type. Then it not necessary to complete the project with “tabular” storeys and with “tabular” horizontal partitions.

This variant makes impossible correct calculations of seasonal energy demand in a building.