Auto Variable Speed Control, AV-11
The AV-11 automatic variable speed control and thermostat controls a system of fans to assist in the total ventilation of your buliding.
The control features a unique Power-Up function that cold-starts motors at full speed, then reversts to preset speed. This means full fan horsepower overcomes fan and shutter inertia and avoids fan start-up stalling or cold weather feeze-up. Power-Up protects expensive fan motors. The AV-11 is able to control many fans of the same horsepower and operates on 120 or 240VAC. Temperature set control and minimum speed set is standard.
Contact Osborne for detailed specifications.