The components are engineered for the Series FHB wall hydrant vacuum breaker

Universal Voltage Integration: Multi-tap design handles 120V

while the solid copper fittings simplify brazing during installation

What is the difference between SPDT and SPNO relays

Reznor 113216 Switch The components are engineered forThe Reznor 113216 Blocked Vent Switch is a critical safety component designed for Reznor gas fired unit heaters, including industrial and commercial series. In the field, this limit switch serves as a primary safeguard by monitoring for restricted airflow or draft obstructions within the venting system. When a vent blockage is detected, the 113216 switch immediately interrupts the burner's combustion sequence, preventing the dangerous accumulation of