Important: As of Release 5.0, the Fan Relief for UL-864-UUKL v50 module replaces the Fan Relief for UL-864-UUKL module.
The Fan Relief BSP for UL-864-UUKL module controls building static pressure using a variable speed relief fan in an air handler application. This module accepts building static pressure, PID tuning parameters, and setpoints. The module has outputs for controlling a variable speed relief fan. This module accepts commands from a FSCS. The FSCS input takes precedence over the mode input. This module also incorporates tracking the overridden value of the actual output object (AO, PAO). The module resets the PIDs to default tuning parameters if the Reset PID Tuning input is not Normal.