The UCRT combines Tjernlund’s UC1 burner interlock control with an Inducer speed control. It is designed for use ONLY with Tjernlund RT-Series Rooftop Inducers. The UC1 Universal Control is compatible with virtually any burner control circuit. Features include: adjustable pre & post purge, LED status/diagnostic indicators, prover status monitoring. Increases safety and reduces burner lockouts. Easy multiple heater interlock with MAC-Series controls. Powered by 115 VAC.