the secondary limit must respond instantly to airflow restrictions or over-temperature conditions to prevent heat exchanger damage
Corrosion Resistance: The 304 stainless steel ball and stem assembly prevent pitting and scale buildup in harsh water conditions
A tripped limit switch typically results in the indoor blower motor running continuously while the burners fail to ignite
It handles switching for internal fan motors
Designed for field-service efficiency
Packard PF524100 Transformer Els PW 17895 the secondary limit must respondWhen you're out in the field and need a reliable, high capacity solution for commercial or industrial control panels, the Packard PF524100 multi tap transformer is a technicians go to for versatility. This 100VA foot mount transformer is engineered to handle a wide range of input voltages, including 120V, 208V, 240V, and 480V, converting them into the standard 24V secondary output required by most modern HVACR controls. Unlike standard 40VA or 50VA