Graphics Programs Reference
In-Depth Information
Fluid Temperature This is where you specify the temperature of the
fluid.
Fluid Dynamic Viscosity This value is determined by the fluid type
and temperature previously selected. It does require that the correct
values are entered when setting up fluids other than water.
Fluid Density This value is determined by the fluid type and
temperature previously selected. It does require that the correct values
are entered when setting up fluids other than water.
Flow Conversion Method is available only in domestic cold and hot-water
systems:
Flow Conversion Method Here you have a choice of Predominantly
Flush Valves or Predominantly Tank Valves. Your choice here will
determine how Revit converts a Fixture Unit value to a Flow Rate for
pipe sizing and pressure calculations.
The identity data is the same as for duct systems and the Rise/Drop
parameters are similar to the parameters for duct systems but include both
single line and double line options and Tee Up and Tee Down options.
Understanding Child and Parent Relationships in
Revit Systems
To fully understand systems, there is one more thing you should know
about: the child-to-parent relationships they must form in order to work
properly. This knowledge is especially critical when you are building
families. Without understanding the child and parent and their purposes,
you likely will have problems with system flow and any sort of calculations
using Revit.
Figure9.24 showsanexampleofasupplyairsystemanditschildandparent
relationships that must be formed.
 
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