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Diffusers, ductwork, and mechanical equipment can all be assigned an elevation. The 2D and 3D blocks for the device will be inserted at the specified elevation.
For ceiling diffusers, the located of the elevation is the bottom of the diffuser.
For sidewall diffusers, the located of the elevation is based upon the duct it is connected to.
For ductwork, the located of the elevation is the based upon the Vertical Alignment field.
For mechanical equipment, the located of the elevation is the based upon the Elevation Location field.
It is not necessary to set the elevation. A default value of 10 will be used. You will not see any errors, though some features will not be useful if you do not provide elevations. The 3D model will not be correct.
The elevation is relative to the current floor or alignment point area. If the device is inserted inside of a room, the elevation is based upon the elevation of the floor the room is in. If the devices is not inside of a room, the elevation is based upon the elevation of the alignment point area. In both cases, the elevation you enter is added to the other elevation to give the true elevation of the device. You do not want to enter the elevation relative to ground or sea level.
Elevations are specified as feet-inches, similar to an architectural format, but without the foot or inch tick marks. A single number without a dash is interpreted as an elevation in feet.
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