This control diagram outlines the instrumentation and control points for a condenser water pump operating within a mechanical piping system. The condenser water supply piping and condenser water return piping feature analog input temperature sensors monitoring both supply and return water temperatures, along with a differential pressure sensor connected across the lines. The pump motor is controlled through a variable frequency drive receiving a binary output start-stop signal, an analog output speed command, and a binary input status feedback. This schematic establishes the required automation points for pump operation and system monitoring.
BO AO BI VFD CONDENSER WATER PUMP START/STOP SPEED STATUS AI CWS TEMPERATURE AI CWR TEMPERATURE AI DIFFERENTIAL PRESSURE CWR PIPING CWS PIPING
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