The direction of the spring return fail-safe is determined by the mounting orientation (CW or CCW) on the damper shaft

this PSC blower motor provides the amperage stability (9

and commercial air handlers where quiet

This item is the painted top panel only

Belimo 01APS-50R Pressure Switch 326010-701 The direction of the springThe Belimo 01APS 50R is a field adjustable differential pressure switch engineered for precision monitoring of air and non combustible, non aggressive gases in commercial HVAC systems. This passive duct sensor provides critical feedback for overpressure, vacuum, and differential pressure applications with a tunable setpoint range of 0. 08 to 1. 20 inches WC (20 to 300 Pa). Designed for high reliability air flow proving and filter status monitoring,