Tjernlund HSJ Blower,Induced Draft

Used for Side wall venting residential/light commercial natural gas, LP or oil fired equipment including: Furnaces, boilers, water heaters and unit heaters. All models feature the newUC1 Universal Controland a diaphragm Fan Proving Switch safety interlock which will shut down the heating equipment if a venting malfunction occurs. Built-in adjustable damper also allows regulation for maximum combustion efficiency. UC1 Universal Control features include; adjustable pre and post-purge settings, LED Status/diagnostic indicators, Fan Prover switch monitoring. Interlocks with any 24-120 VAC burner control circuit and also includes “dry” contact actuation option. Easily interlock multiple appliances with ourMAC-Seriesmultiple appliance controls.