. . . . . ATP-Y is a also a Form C Relay Output (24VAC or VDC) with an option of two pulse ouput ranges designed to communicate with York(TM) Chiller Control Packages. Some chiller control panels require a 1-11 or 0-21 second pulse to remotely reset chilled water temperatures. . ACT. Advanced Control Technologies Inc. ATP-Y (1-11). UPC: 780333841838. EAN: 0780333841838. GTIN: 00780333841838.