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This refers to the thermal cutoff temperature (450 degrees)
reducing emergency service calls for contractors
allowing for upright mounting in demanding environments
Using it in a positive pressure system may result in incorrect flow regulation and unsafe operating conditions
this authentic OEM replacement part ensures optimal combustion air intake and flue gas exhaust performance
Resideo VCZND6100 Valve 319848-301 This refers to the thermalThe Resideo VCZND6100 is an industrial grade 1 1 4 inch NPT three way cartridge cage valve engineered for precision flow management in commercial and residential hydronic systems. Designed for mixing or diverting applications, this valve body is essential for fan coil units, air handlers, and complex hydronic distribution networks. It features a 9 CV flow rating and a robust 60 psi close off pressure, ensuring reliable performance under standard
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