the EXC1378 is designed to handle high-cycle thermal expansion without premature fatigue

250 Op 450 Cl

Industrial-Grade Construction: Built to withstand the vibrations and thermal cycling common in commercial HVACR environments

Install the control on an interior wall about five feet above the floor in an area with good air circulation to ensure accurate ambient humidity sensing

Reznor 221240 Venter Assembly 321702-401 the EXC1378 is designed toEnsure your higher efficiency Reznor unit maintains its draft integrity with the Reznor 221240 Venter Assembly. This OEM Reznor replacement part is engineered specifically for high efficiency unit heaters where precise combustion air delivery is non negotiable. Designed as a venter assembly less shroud, this component is a direct fit for Reznor SHH, RHH, and UEAS series models, including the 130, 180, and 260 capacity units. As a veteran grade HVAC