while the reversible flow capability offers maximum flexibility in complex piping configurations without sacrificing pressure drop performance

or inverted mounting

Enhanced Combustion Stability: The built-in flame lock technology secures the flame at the nozzle head

this switch prevents operation during flue blockage or draft inducer failure

using this factory-specified ignition cable is the most reliable way to restore consistent spark performance and maintain the combustion efficiency of hydronic heating equipment

Reznor 197033 Rollout Switch while the reversible flow capabilityThe Reznor 197033 Rollout Switch is a critical safety component designed for high limit flame rollout detection in Reznor heater units. This manual reset rollout switch operates with a fixed temperature setpoint of 210 degrees Fahrenheit, providing essential circuit interruption if burner flames escape the combustion chamber. Engineered with a Single Pole Single Throw (SPST) configuration, this switch serves as a direct replacement for Therm O Disc