If the sensor detects a loss of flame or carbon buildup

Roof-mounted systems typically require a concentric vent or a standard weather cap

even HFO and HC refrigerants

Built with durable housing and high-quality internal thermistors

Lau 38209501 Shaft 322838-753 If the sensor detects aThe Lau 38209501 blower shaft is a direct replacement component engineered for heavy duty commercial and industrial HVAC applications. Fabricated from solid 1018 cold rolled steel, this 1 inch diameter shaft provides the high torsional strength and structural rigidity required to eliminate bowing and vibration in belt drive blower assemblies. Measuring 25 inches in length, the 1018 grade steel features a polished finish to ensure a precision fit