Application

Room Segment Functions
Device Control Functions HVAC
67
Siemens Industry, Inc.
Application Note
A6V11692053
Smart Infrastructure – Building Products
2019-04-01
Valve Position
Outside Air Temperature
Y1DndftElPos: 100%
X1DndftTOa: 23°F
Y2DndftElPos: 25%
X2DndftTOa: 50°F
Downdraft compensation is implemented using a linear reset function. The
following graphic shows factory default values for X,Y downdraft compensation
parameters.
Parameter EnDndft must be set to 1:Yes for downdraft compensation to function
(see Configuration).
The following figure(s) illustrates control modulation and related functions.