Resideo VCZAL3100 Valve 320788-702 or a furnace that fails

or a furnace that fails to ignite because the pressure switch cannot sense the required vacuum

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

professional consultation is recommended to ensure correct phase leg utilization

this specific model uses NBR seals rated for standard fluid temperatures

Resideo VCZAL3100 Valve 320788-702 or a furnace that failsFor 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