Edit Rooms

To edit a room’s definition, go to

DM HVAC->Building Definition->Rooms->Edit Room

Room List Dialog Box

Building Definition--Rooms.Room List dialog box

See the Common Schedule Dialog Box Features section for more information about how this dialog box works. This section describes the Rename, Find, Previous, Next, Save and Delete buttons.

There is no Copy button in this dialog. To copy a room, use the copy command in AutoCAD to copy it on the drawing.

Most of the values in a room are based upon the Room Type, Floor, and Zone. To override them in the specific room, check the box next to the field to enable it. Then you can enter a value for the setting that will be used only in the selected room.

Room Type: The room type taken from the room project schedule. See the Room Project Schedule section for more information. The following fields are based upon the Room Type:

Glass Zone Type
Include in Heating Load Calculation
Including in Cooling Load Calculation
Lighting Settings
Minimum Supply Air
Ventilation Rates
Infiltration Rates
Equipment Settings
People Settings

Floor: The floor the room is associated with. See the Floor List section for more information. The following fields are based upon the Floor:

Ceiling Height
Roof Settings
Floor / Ceiling Partition Settings

Zone: The zone the room is associated with. See the Zone List section for more information. The following fields are based upon the Zone:

Design Temperatures

Lighting

Percentage to Plenum: For rooms in a zone with a plenum return, the percentage of the lighting load that is transferred to the plenum. The lighting load in the plenum is included in the system load but not the room load.

This value is ignored if the room is in a zone that does not have a plenum return.

Roof

Include Roof: If you have chosen to override the roof setting from the floor, this checkbox controls whether or not the room has a roof.

Roof Type: The roof type taken from the roof project schedule. See the Roof Project Schedule section for more information.

Roof Percent: Select this option to set the roof area to be based upon a percentage of the total room area.

Roof Area: Select this option to set the roof area to a specific value.

Skylight Type: Whether or not the room has a skylight. This checkbox is disabled if the room does not have a roof. If the room has a skylight, you can set the type of glass used for the skylight.

Skylight Area: The area of the skylight.

Floor / Ceiling Partition

Include Partition: Whether or not the floor has a floor or ceiling partition. If this box is checked, the rooms in the floor will include a floor or ceiling partition by default.

Check this box when there is an unconditioned space either above or below the floor. There will be a heat transfer through the area based upon the temperature difference, but there will be no solar load. If you need a solar load, use the Roof checkbox instead.

To model a floor and a ceiling partition, add the u-values for the two partitions together and use that for the U-Value field.

Partition Percent: Select this option to set the partition area to be based upon a percentage of the total room area.

Partition Area: Select this option to set the partition area to a specific value.

U-Value: The heat transfer coefficient of the floor or ceiling partition.

To model a floor and a ceiling partition, add the u-values for the two partitions together and use that for this field.

Use OSA Temperatures for Other Side: What temperatures are used for air on the other side of the partition.

If this box is checked, the temperatures are based upon the outside air temperatures set in the Project Information dialog box. The high temperature used for the cooling load will change during the day.

If this box is not checked, the temperatures are input directly in the Other Side High Temperature and Other Side Low Temperature fields. The high temperature does not change during the day.

Other Side High Temperature: The high temperature on the other side of the partition used during cooling load calculations if the Use OSA Temperatures for Other Side box is not checked. This high temperature does not change during the day.

Other Side Low Temperature: The low temperature on the other side of the partition used during heating load calculations if the Use OSA Temperatures for Other Side box is not checked.

Other Settings

See the Common Room Information section for more information on the other room settings.

Select from Drawing: Press this button to select the room from the drawing. You will be prompted to select a point inside the room.

Specify point inside room:

After you select the point, the dialog box will be reopened with the selected room displayed.


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