Reznor 123976 Fan Control 30067439-890 Using AC internal components in

Using AC internal components in a DC circuit can lead to plunger travel issues and potential coil overheating due to different spring tensions

ensuring system pressures equalize before the next start cycle

it is compatible with any HVAC application requiring a 1" bore pillow block bearing with matching bolt-hole centers

5-inch pre-stripped leads and dual bottom search openings for versatile conduit attachment

Reznor 123976 Fan Control 30067439-890 Using AC internal components inThe Reznor 123976 Fan Control is a critical OEM replacement component engineered for precise thermal management in industrial and commercial heating applications. This F135 40F thermostatic switch is designed to regulate blower fan cycling by monitoring heat exchanger temperatures, ensuring the fan only operates within the 135F to 40F range. By maintaining these specific operational thresholds, the Reznor 123976 prevents the delivery of cold air