General Tab

The General tab displays project information that only affects a heating and cooling loads analysis. You can modify this information before a loads analysis or after to make it comply with your specifications.

The General tab contains the following options:

• Building Type: Specifies the building type for the project.
• Location: Specifies the geographical location for the project.

  You can change this information by clicking , and using the Manage Place and Locations dialog.

• Building Service (Default Space Service): Specifies the heating and cooling system for the project.
• Building Construction (Default Space Construction): Specifies the constructions type for the building.

  You can change the construction type and its corresponding constructions by clicking , and using the Building Construction Dialog.

• Building Infiltration Class: Specifies an estimate of outdoor air that enters the building through leaks in the building envelope.

  Infiltration can be specified as:

  • Loose - 0.076 cfm/sqft for tightly constructed walls.
  • Medium - 0.038 cfm/sqft for tightly constructed walls.
  • Tight - 0.019 cfm/sqft for tightly constructed walls
  • None - infiltration is excluded from the calculation of loads.
• Report Type: Specifies the level of information provided in the heating and cooling loads report.

  You can specify Simple, Standard, or Detailed for Report Type.

• Ground Plane - (read only) is the level that serves as the ground level reference for the building. Spaces below this level are considered to be underground. The default level is zero.
• Project Phase - (read only) is the stage of construction (Existing, New Construction).
• Sliver Space Tolerance - (read only) is the tolerance for areas that will be considered sliver spaces. See Accounting for the Volume of Cavities, Shafts, and Chases.
• Use Loads Credit - accounts for heating or cooling “credit” loads that take the form of negative loads. For example, heat that leaves a zone through a partition into another zone can be a negative load/credit.