A variable volume box is suspended from the structure using strap hangers sized per plan. The branch duct connects to the box inlet matching its size unless noted otherwise. Downstream of the valve, a rectangular sheetmetal duct features one inch acoustical insulation extending a minimum of six feet before the first take off. A reheat coil transitions into the rectangular sheetmetal duct, which includes an access door for maintenance.
STRAP HANGERS-SUPPORT FROM STRUCTURE AS REQUIRED VARIABLE VOLUME BOX SEE PLAN FOR SIZE BRANCH DUCT TO BE THE SAME SIZE AS BOX INLET UNLESS NOTED OTHERWISE. MAIN SUPPLY DUCT SEE PLAN FOR SIZE RECTANGULAR SHEETMETAL DUCT LINED WITH 1" ACOUSTICAL INSULATION 6'-0" MIN. DOWN STREAM OF VALVE BEFORE FIRST TAKE OFF. SEE SPECIFICATIONS. REHEAT COIL TRANSITION TO RECTANGULAR SHEETMETAL DUCT ACCESS DOOR
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