Design Master HVAC integrates the process of designing and
drafting ductwork systems.Rather than using one software
program for load calculations, one for duct sizing, and
yet another for drafting, we do it all for you. There is
no need for tedious, cumbersome, and error-prone transfers
of data between programs. Everything you need to do, you
can do in Design Master HVAC, and it is all available from
the familiar AutoCAD interface.
Using the calculated CFM value, DM HVAC can size the ductwork.
As the designer, you can specify the criteria that a duct
needs to satisfy.
Ducts can be sized using three different methods: constant
velocity, constant pressure drop, or static regain. In addition,
you can specify size and shape constraints. Any combination
of width, depth, and shape can be set and locked. When the
CFM values in a duct are changed, Design Master remembers
which settings you locked and which it can change and calculates
the appropriate size for the duct.
For example, if you are working in a ceiling space that
only allows ducts of 24" depth in them, you can tell
Design Master that. Ducts that are sized will not exceed
that 24" depth, increasing their width instead if they
need to be that big.
The pressure in a system is automatically calculated by
Design Master. When you select a duct, it will display the
total pressure at that point based upon the worst-case pressure
drop. The pressure drop is calculated based upon the CFM
in the ducts, the duct shape and lengths, and the particular
fittings used in the duct section.
Using this information, you can size the fan for your HVAC
A computer capable of running AutoCAD 2002 or later. Here
are the recommended system requirements from Autodesk for
AutoCAD 2007, their latest version. Here is a list of AutoCAD
system requirements for other versions.
AutoCAD 2002 or later. This includes AutoCAD 2002, 2004,
2005, and 2006. We do not currently support AutoCAD 2007
at this time.
Windows XP (Professional or Home Edition) or Windows 2000
Screen resolution of 1024x768.
If you are going to share Design Master files over a network,
a Microsoft Windows operating system on the server.
The following are known to work, but are no longer officially
AutoCAD 2000 and 2000i. Autodesk has stopped officially
supporting these two version. We no longer test our software
on them. All of our ARX's are available in a format that
will work with these versions. You are welcome to run Design
Master on these versions, but you might run in to difficulties
that can only be fixed by upgrading your version of AutoCAD.
The following are not officially supported by Design Master,
though it is possible that they will work:
Windows 98 and Me.
The following are not supported by Design Master and will
AutoCAD R14 or earlier .
Any version of AutoCAD LT.
Windows 95 or earlier.