The flexible duct inner liner pulls over the diffuser collar and secures with draw band one. The flexible duct insulation and outer jacket secure with draw band two. Horizontal runs require elbow support devices and minimum 1-1/2 inch wide saddles spaced every 5 feet. An accessible ceiling finishes the assembly below.
FLEXIBLE DUCT DRAW BAND (1) DRAW BAND (2) DIFFUSER WITH ROUND INLET CONNECTION (3) MIN. 1-1/2" WIDE SADDLE. PROVIDE SUPPORT AT ELBOW AND EVERY 5 FT FOR HORIZONTAL DUCTWORK. (4) ACCESSIBLE CEILING SEAL NOTES: (1) PULL FLEXIBLE DUCT'S INNER LINER OVER DIFFUSER COLLAR AND SECURE WITH DRAW BAND. (2) SECURE FLEXIBLE DUCT INSULATION AND OUTER JACKET WITH DRAW BAND. (3) REFER TO SECTION 20 0700 FOR DIFFUSER INSULATION REQUIREMENT. (4) PROVIDE ELBOW SUPPORT DEVICE SIMILAR TO THERMAFLEX FLEXFLOW ELBOW IF 90° ELBOW SHAPE IS NOT MAINTAINED BY FLEXIBLE DUCT ITSELF.
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