Featuring a microprocessor-based design

preventing damage to downstream electronics during a short circuit

Corrosion Resistance: Finished with a durable powder-painted shell tested for 500 hours in salt spray

System Protection: Integrated adjustable temperature differential and delay timers safeguard the compressor against rapid cycling

18" WC pressure switch to fail

Resideo VCZML7100 Valve 321702-401 Featuring a microprocessor-based designThe Resideo VCZML7100 is an industry standard 3 4 inch sweat three way cartridge cage valve engineered for precision flow control in commercial hydronic systems. Designed for proportional non fail safe control using VC series actuators, this valve utilizes a stem up to close A port configuration. With a robust 6. 6 Cv rating and a 60 psi close off pressure, it provides reliable performance in both chilled and hot water applications, including systems