Applications Guide Tracer Graphical Programming - Trane

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Writing the discharge air control program
Figure 117: Controlling the heating valve
Complete the module in Figure 117 to control the heating valve.
• Use logic blocks to implement the decision to operate the heating
valve.
• Add a PID loop to control the heating valve output.
• When the outdoor air temperature falls below the adjustable, low outdoor
air temperature setpoint, use a Switch block to control the output
to its fully open position.
The heating valve module completes the discharge air control program as
shown in Figure 118 on page 126. Compile and download the program to
your Tracer MP580/581 controller.
CNT-APG001-EN 125