Double Duct Air Terminal Unit - DD500

• Damper rotates in a self-lubricating, long life, low friction thermoplastic bearing
• Industry leading continuous welded primary inlet duct to minimize leakage with three stiffening beads for added rigidity
• Mechanically fastened damper assembly shall be double layer, 18 gauge equivalent, galvanized steel with integral blade seal (<1% at 3.0" wg static pressure)
• Multi-quadrant, averaging flow sensor for highly accurate (+/-5%) flow readings with varying inlet duct configurations after certified balancer has balanced terminal
• Rectangular discharge with slip and drive duct connection
• 22 ga. galvanized steel casing, mechanically sealed for low leakage construction
• NEMA 1 rated control enclosure for both hot and cold decks with stand-off to prevent penetration of casing
• Full range of options and accessories available including liners, heating coils, access doors, attenuators, etc.
• All DD-500 terminal units are AHRI certified and shipped with the AHRI seal

Liners

• ½” or 1” 1.5lbs fiberglass
• ½”, ¾”, or 1” 1.5lbs foil faced
• ½” or 1” Thermopure closed cell foam
• ½” or 1” Fiberglass with solid metal double walled

Access Doors

• Damper 
• Inlet sensor
• Hot water coil
• Electric heat

Other options available:

• 5 different control enclosures
• 4 different handing configurations
• 3 different outlet connections 
• Hanger brackets
• 4 different transformers
• Custom options