You can set independent ON and OFF points for each of the four relays between 0

and pumps maintain optimal airflow

As the direct updated replacement for the Watts 0068531

Common Technician Questions: Can this be mounted without a thermal well

GC Valves S202GF02N5DG4 Solenoid Valve THPU32HP7Y You can set independent ONThe GC Valves S202GF02N5DG4 Solenoid Valve is a professional grade, 2 way normally open solenoid valve designed for reliable flow control in high demand HVACR and industrial fluid systems. Built with a heavy duty brass body and a 5 8" orifice, this 1 2" NPT solenoid valve utilizes a pilot operated diaphragm to achieve a zero differential pressure rating, making it ideal for low pressure applications. The 120Vac coil is Class F rated for superior