A magnetic valve provides a decreasing seat force as it opens

preventing hunting and protecting the compressor

By supporting multiple belt sections

This part number may have superseded earlier versions

which typically includes the pre-programmed power and control module necessary for variable-speed operation

EWC Controls MA-15S Damper Motor 326058-755 A magnetic valve provides aThe EWC Controls MA 15S is a high torque, 24V replacement motor designed specifically for EWC motorized dampers requiring a rapid 15 second stroke cycle. This synchronous motor is engineered for high cycle reliability in residential and light commercial zoning systems, providing precise airflow control to maintain static pressure balance. Unlike standard 45 or 60 second actuators, the MA 15S damper actuator features a shortened gear train for