or inverted mounting

The shunt provides a continuous electrical path that bypasses the switching mechanism for one side of the line

Which terminals represent the fan and the compressor

Check for a weak pilot flame that isn't fully engulfing the top 1/2 inch of the thermocouple

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

Reznor 197033 Rollout Switch or inverted mountingThe 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