Resideo VCZAL3100 Valve 320788-702 or the unit failing to

or the unit failing to proceed past the pre-purge phase because the pressure switch won't close

Versatile Performance: Supports both heating and A/C operations with multi-speed leads for customized static pressure management

this specific model uses NBR seals rated for standard fluid temperatures

Key Benefits High-capacitance 233-292 microfarad range provides superior starting torque for heavy-duty compressors

Resideo VCZAL3100 Valve 320788-702 or the unit failing toFor contractors managing hydronic zone control, the Resideo VCZAL3100 Valve is a 3 4" NPT two way cartridge cage valve engineered for reliable performance in both chilled and hot water systems. Built with a rugged bronze body and a stainless steel stem, this 3000 series valve is specifically designed for modulating and floating control applications. It features a 4. 7 Cv rating and a linear flow characteristic, ensuring high precision regulation for