Applications Guide Tracer Graphical Programming - Trane

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Chapter 6 VAV AHU example
Figure 126: Effective setpoint calculation in TGP
Figure 127: Validating discharge air setpoints
Validating the discharge air setpoints
The effective setpoints provide a basis for the heat/cool mode decision, but
they do not provide a basis for discharge air control. The DAC profile provides
configured discharge air cooling and heating setpoints in the form of
two network variables: nciDAClSP, and nciDAHtSP, respectively. Use the
TGP module in Figure 127 to validate the discharge air setpoints.
The Limit block applies constants as high and low limits to the discharge
air cooling and heating setpoints. Use variables to store the resultant
effective setpoints for use in another program.
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