Utica Dunkirk 14631010 Pressure Switch R 407A this component is critical for this component is critical for ensuring that the start capacitor is dropped out of the circuit at the precise moment the motor reaches its pickup voltage The robust construction and factory set orifice allow for the precise water heater gas burner performance required to meet energy efficiency standards and provide consistent thermal output without premature soot accumulation or carbon monoxide production We recommend inspecting your existing silicone tubing for cracks or moisture buildup and replacing it if any degradation is found to ensure accurate pressure readings (Water Column) setpoint