General

This section describes the options available in the General group in the Options dialog box:

options-general-dialog-box

Display neutral wire count separately from phase wire count: Whether neutral and hot wires are listed together or separately when they are the same size.

Yes: The neutral wire count is listed separately from the phase wire count. Example: 1/2"C,3#12,#12N,#12G
No: The neutral wire count and the phase wire count are added together. Example: 1/2"C,4#12,#12G

Conduit location: Where the conduit size is displayed in the wire callout.

Start of wire callout: The conduit size is located at the start of the wire callout. Example: 1/2"C,3#12,#12N,#12G
End of wire callout: The conduit size is located at the end of the wire callout. Example: 3#12,#12N,#12G,1/2"C

Homerun wire callouts: Whether the wire callout is displayed for homeruns.

Display wire callout for all homeruns: The wire callout is always displayed.
Hide wire callouts for #12 wire: The wire callout is not displayed for #12 homeruns. Wire callouts are displayed for larger homeruns.
Hide wire callouts for #12 wire on 1-pole circuits: The wire callout is not displayed for #12 homeruns on single-pole circuits. Wire callouts are displayed for larger homeruns or #12 homeruns on multi-pole circuits.

Transformer voltage drop calculation method: There are three options for addressing transformers when calculating voltage drop. See the Voltage Drop and Transformers Options article in the knowledge base for more information.

Include transformers in voltage drop: The voltage drop through the transformer is calculated and added to the voltage drop on the feeder. The voltage drop through the upstream feeders is carried through the transformer.
Ignore transformers: The voltage drop through the transformer is ignored when the voltage drop for the system is calculated. The voltage drop through the upstream feeders is carried through the transformer.
Reset voltage drop at transformers: The voltage drop is reset to 0% at each transformer. The voltage drop through the transformer is ignored. The voltage drop through the upstream feeders is ignored.

Feeder voltage drop percentage limit: The maximum voltage drop percentage allowed on feeders. Voltage drop percentages above this value will be highlighted in the parameter output.

3%: Feeders are allowed to have a 3% voltage drop as described in 2020 NEC 215.2(A)(1) Informational Note No. 2.
2%: Feeders are limited to a 2% voltage drop. Some state energy codes impose this requirement.

Circuit description method: Whether circuit descriptions are controlled through Design Master commands.

Use Revit circuit descriptions: Circuit descriptions are set in the panel schedule or Load Name parameter using standard Revit functionality. Circuit descriptions set using the Family Edit command are ignored. Circuit description settings in other Edit commands are removed or locked with Controlled by Revit displayed.
Use Design Master circuit descriptions: Circuit descriptions are set using the Edit commands. See Circuit Descriptions for more information.

Include room names in circuit descriptions: Whether circuit descriptions include room names. If Circuit description method is set to Use Revit circuit descriptions, this option is ignored.

Yes: Circuit descriptions include a list of all of the rooms served by the circuits. The names of each area containing devices on the circuit will be listed. Each area is listed once in the circuit description.
No: Circuit descriptions do not include room names.

Feeder length calculation method: How the feeder lengths are calculated between distribution equipment.

Straight line: The lengths are calculated based upon the straight line distance between the distribution equipment and item connected to it. This calculation approximates lengths for wires running directly between devices, typically underground.
Right angles: The lengths are calculated based upon the distance along the axes of the building between the distribution equipment and item connected to it. This calculation approximates lengths for wires running along the walls of the building.

Branch circuit length calculation method: How the branch circuit lengths are calculated between distribution equipment and connected devices.

Straight line: The lengths are calculated based upon the straight line distance between the distribution equipment and item connected to it. This calculation approximates lengths for wires running directly between devices, typically underground.
Right angles: The lengths are calculated based upon the distance along the axes of the building between the distribution equipment and item connected to it. This calculation approximates lengths for wires running along the walls of the building.

Building angle: The orientation of the building used when the Feeder length calculation method or Branch circuit length calculation method is set to Right angles. See the How Building Angle Affects Calculations article in the knowledge base for more information about this setting.

Output shared parameter values as uppercase: The format used for the case of default shared parameter values. User-specified values always use the text exactly as input by the user.

Yes: Shared parameters use all uppercase letters for fixed values.
No: Shared parameters use a mix of uppercase and lowercase letters for fixed values.

Feeder wire make-up length: Additional length of wire added to automatically calculated feeder lengths to represent make-up in the field.

Branch circuit wire make-up length: Additional length of wire added to automatically calculated branch circuit lengths to represent make-up in the field.

Add branch circuit wire make-up for each device: Whether the length specified in Branch circuit wire make-up length is added for each device on the circuit.

Yes: The length is added for each device on the circuit.
No: The length is added once, regardless of the number of devices on the circuit.

Calculate feeder voltage drop based upon 80% of panel capacity: The load used when calculating voltage drop on distribution equipment.

Yes: The calculation is made based upon 80% of panel capacity.
No: The calculation is made based upon the calculated load on the distribution equipment.

Calculate branch circuit voltage drop based upon 80% of breaker capacity: The load used when calculating voltage drop on branch circuits.

Yes: The calculation is made based upon 80% of breaker capacity.
No: The calculation is made based upon the calculated load on the branch circuit.

Voltage drop power factor: The power factor used when calculating voltage drop.

Based upon Revit settings: The power factor is based upon the connector settings for the family.
Fixed at 0.85: The power factor is set to 0.85.

Ambient temperature: The ambient temperature in °C used to determine the ampacities of conductors based upon NEC 310.15(B). The recommended value for most projects is 30.


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