System 450

Look for physical indicators such as a bulged top

a loose fit on the shaft

70" WC SPST (Single Pole Single Throw) switch ensures the inducer motor is generating sufficient negative pressure to safely vent combustion gases

As a genuine York HVAC replacement part

Raypak 006021F Sensor System 450The Raypak 006021F Roll Out Flue Sensor is a safety critical 150F fixed temperature switch engineered for precise thermal monitoring in high efficiency Raypak boiler parts and pool heaters. As an essential OEM HVAC replacement sensor, this component is designed to detect flame roll out or excessive flue gas temperatures, immediately breaking the safety circuit to prevent damage to the heat exchanger or cabinet. This Raypak roll out switch functions as