The Fan Supply Duct Static for UL-864-UUKL module uses the supply fan to control the supply air duct static pressure. The module has inputs for the following items: desired mode, desired mode when the pressure sensor is unreliable, a ramp rate, pressure, pressure setpoint, and process units. The module is also designed to accept commands from a firefighter smoke control station 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.
Important: As of Release 5.0, the Fan Supply Duct Static for UL-864-UUKL v50 module replaces the Fan Supply Duct Static for UL-864-UUKL module.