FLM COAXIAL DUCT SYSTEMS

   FLM Coaxial Duct Systems are provided as a means to provide outside make-up air directly to commercial Tumblers.  This is done primarily to eliminate negative air pressure within the building, reduce energy consumption, and improve Tumbler performance.

The Coaxial Duct Systems is fabricated from galvanized steel.The inner exhaust duct section shall be fabricated from a minimum 20 gauge galvanized steel.  The outer intake duct shall be fabricated from a minimum 18 gauge galvanized steel for all Coaxial Ducts Systems The Coaxial Duct System shall have a by-pass duct which will duct the pre-heated outside make-up air directly into the Tumble

          The system consists of two separate ducts

         The inner exhaust duct which comes from the tumbler. The inner

exhaust duct shall terminate with a flange connection, for connecting to the exterior exhaust duct which will run to the Lint Collector. Outer intake duct which extends to the atmosphere approximately 3’0” above the roof level.  The outer intake duct shall be secured to the inner exhaust duct by a series of fins, which shall run longitudinally for the entire length of the coaxial duct run.

Also included, is the burner intake ducting, which will duct the outside, pre-heated air, directly into the burner intake.

A weather Shield –will be  installed above the roof curb