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Key Benefits Plenum Rated Construction: The all-metal body meets strict code requirements for installation within ceiling plenums and sensitive air handling spaces
In most field scenarios
If you are servicing a system with a single threaded coaxial connection
it often trips due to a blocked return air duct or broken blower belt
For most power-vented units
Emerson Alco 097993 Control R-410A Key Benefits Plenum Rated Construction:The Emerson Alco 097993 Control (Model FSX 42S) is a high performance electric fan speed control designed to optimize head pressure in air cooled condensers. Engineered for 230Vac systems, this pressure actuated controller modulates fan speed between 190 360 PSI, maintaining stable refrigeration cycles even as ambient temperatures fluctuate. Built with a 1 4" flare connection (7 16" 20 UNF), the unit mounts directly to the system, facilitating a
