while this assembly includes the 24V coil

it is designed exclusively for cold-water service where chemical resistance and physical structural integrity are paramount for long-term system performance

With a wide operating temperature range from -40°F to 176°F

making it a critical component for UL555 and UL555S compliant installations

Versatile Mounting: Optimized for installation in both vertical and horizontal piping orientations

Resideo TK30PV125SFM Tank Kit 328140-751 while this assembly includes theThe Resideo TK30PV125SFM Tank Kit is an all in one hydronic expansion tank solution designed to streamline professional installations. This kit features the Extrol Model 30 expansion tank, engineered to handle thermal expansion in closed loop systems by maintaining internal pressure below the relief valve setting. Critical to system longevity, the package includes a Resideo SuperVent air eliminator with a 1 1 4 inch sweat connection, which utilizes a