and refrigeration circuits

an open circuit indicates failure

allowing technicians to verify relay switching and sensor accuracy without waiting for a full timing cycle

check for continuity across the normally open (NO) contacts to confirm the internal switch is engaging properly

15 m³/h Kv value

Aprilaire 6998 Actuator 319825-402 and refrigeration circuitsThe Aprilaire 6998 Actuator is a precision engineered normally open (N O) replacement actuator designed to restore peak performance to your HVAC zoning system. As a genuine Aprilaire replacement part, this 24V damper motor ensures seamless compatibility and reliable operation for controlling airflow within residential or commercial ductwork. Manufactured in the United States, the 6998 is built to OEM specifications, offering a durable solution for