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Applications Guide Tracer Graphical Programming - Trane

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®<br />

Chapter 7 Constant-volume AHU example<br />

Figure 134: Supply fan control<br />

Controlling the exhaust fan<br />

The control module for the exhaust fan remains functionally the same as<br />

that for the VAV air-handling unit. Except, use variables for the outdoor<br />

air damper setpoint and deadband instead of constants. Variables allow<br />

adjustment of the outdoor air damper position, as shown in Figure 135 on<br />

page 157.<br />

156 CNT-APG001-EN

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