High Performance Mixing Dual Duct Air Terminal Unit - DH500

The Metalaire DH-500 high performance air terminal units are designed to regulate the flow of conditioned air in dual duct air distribution systems. Both heated and cooled air are provided to the air terminal and mixed in an integral plenum to reach the desired discharge temperature. The DH-500 has been engineered to provide an industry leading 1:30 mixing ratio.

Capacities ranging from 40-4,100 CFM in multiple units sizes
AHRI Certified, ETL listed, UL 1995, Complies with NFPA 90A and UL 181
Pneumatic, Electric, Analog, or Direct Digital Controls available
Unequal inlet sizes are available as an option

Specification

- 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
- External control cabinets for hot and cold deck with offset mounting plate
- Optional factory calibrated controls per each job requirement
- Externally accessible steel balancing taps
- 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
- Industry leading 1:30 mixing ratio
- All DH-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
Other options available:
- 5 different control enclosures
- 2 different handing configurations
- 3 different outlet connections
- Hanger brackets
- 4 different transformers
- Custom options