Ductwork

This section describes the options available in the Ductwork group in the Design Master HVAC Options dialog box.

Customization--Options.Ductwork settings dialog box

Rectangular Duct Label Format: The duct label used on rectangular ducts. See the Duct Label Format Codes section below for more information on the values that can be automatically inserted in the label.

Lined Rectangular Duct Label Format: The duct label used on lined rectangular ducts. See the Duct Label Format Codes section below for more information on the values that can be automatically inserted in the label.

Same as Non-lined Duct Label Format: The duct label for lined rectangular ducts will use the Rectangle Duct Label Format option.

Round Duct Label Format: The duct label used on round ducts. See the Duct Label Format Codes section below for more information on the values that can be automatically inserted in the label.

Lined Round Duct Label Format: The duct label used on lined round ducts. See the Duct Label Format Codes section below for more information on the values that can be automatically inserted in the label.

Same as Non-lined Duct Label Format: The duct label for lined round ducts will use the Round Duct Label Format option.

Oval Duct Label Format: The duct label used on flat oval ducts. See the Duct Label Format Codes section below for more information on the values that can be automatically inserted in the label.

Lined Oval Duct Label Format: The duct label used on lined flat oval ducts. See the Duct Label Format Codes section below for more information on the values that can be automatically inserted in the label.

Same as Non-lined Duct Label Format: The duct label for lined flat oval ducts will use the Flat Oval Duct Label Format option.

Maximum Single Line Width (in): The maximum width that ducts with their Graphics set to Automatic will be drawn single-line. All ducts larger than this value will be drawn with double-line.

Default Interior Lining Width (in): The default Interior Lining Width when creating or modifying ducts.

Default Exterior Lining Width (in): The default Exterior Lining Width when creating or modifying ducts.

Show Background Below Ductwork: Whether or not the background and other entities below ductwork are hidden.

Yes: The background and other entities are hidden. The ductwork entities are inserted at their proper elevation. Anything below that elevation will be hidden.
No: The background and other entities are not hidden. The ductwork entities are inserted significantly below their proper elevation. The ducts will hide each other but nothing else in the drawing.

Return and Exhaust Arrow Direction: The direction centerline arrows point for return and exhaust ductwork.

Towards Fixtures: Arrowheads point toward diffusers. The centerlines point in the opposite direction from the flow of the duct. Determining the next and previous duct is simplified with this setting.
Flow Direction: Arrowheads point in the direction of flow, away from diffusers. Determining the next and previous duct is complicated because it depends upon what type of duct you are looking at.

Draw Double Line After Inserting Ducts: Whether or not double-line graphics are inserted after duct centerlines are inserted.

Yes: Double-line graphics are inserted after duct centerlines are inserted on the drawing.
No: Double-line graphics are not inserted after duct centerlines are inserted on the drawing.

Duct Label Format Codes

The Duct Label Format options use special codes to insert duct dimensions in the duct label. These codes are replaced with dimension values from the database when the labels are shown on the drawing.

Multiple codes can be included in a duct label, allowing you to label both interior and exterior dimensions, or provide the dimension in both imperial and metric units.

Interior dimensions are the specified width and depth for the duct.

Exterior dimensions are the interior dimensions plus two times the interior lining (once for the lining on each side of the duct). Exterior dimensions do not include exterior lining width.

Standard Dimensions: Duct dimensions in inches.

W: Interior width in inches.
D: Interior depth or diameter in inches.
WE: Exterior width in inches.
DE: Exterior depth in inches.

Metric Centimeter Dimensions: Duct dimensions converted from inches to centimeters.

WM: Interior width in centimeters
DM: Interior depth or diameter in centimeters
WME: Exterior width in centimeters
DME: Exterior depth in centimeters

Metric Millimeter Dimensions: Duct dimensions converted from inches to millimeters.

WMM: Interior width in millimeters
DMM: Interior depth or diameter in millimeters
WMME: Exterior width in millimeters
DMME: Exterior depth in millimeters

Soft Metric Millimeter Dimensions: Duct dimensions converted from inches to millimeters using 25 millimeters per inch (rather than 25.4 millimeters per inch).

WMMS: Interior width in soft millimeters
DMMS: Interior depth or diameter in soft millimeters
WMMSE: Exterior width in soft millimeters
DMMSE: Exterior depth in soft millimeters

Page url: http://www.designmaster.biz/docs/hvac/index.html?options_ductwork.htm
©2012-2013 Design Master Software, Inc