XDGX I Direct Gas Heated Make-up Air Unit

Combining flexibility with expanded heating, cooling and airflow capacities

Industry-leading airflow turndowns of 50% drive energy efficiency, and DX cooling option provides just enough comfort cooling to improve productivity.

How To Buy
Product Features & Benefits

Highly configurable

Modular design provides the most configuration flexibility and expanded heating and airflow capacities


Airflow volumes

Range from 800 to 15,000 cfm including ultra-efficient heating capacities up to 1,600,000 BTU/hr



Our proprietary barometric pressure damper system provides for at least 50% turndown in airflow in variable volume applications, an additional 250% turndown over our nearest competitor, which means improved energy savings without added cost


Durable construction

Designed for maximum weather resistance, XDG housings are constructed of heavy-gauge G90 galvanized steel


Easy maintenance

Large access panels are provided for easy inspection and maintenance of motors, drives, fan wheels, filters and heater controls


Direct gas-fired system

Featuring high-quality cast aluminum burners with stainless steel mixing plates


Maxitrol electronic modulation burner control

Provides precise and instantaneous temperature control


Code compliant

The control center includes a standard magnetic motor starter, control transformer and disconnect switch. All electrical components are UL Listed, Recognized or Classified and an option for factory prewired single-point power connection.


Precision tooling

Shafts are precision turned, ground and polished steel sized so that the first critical speed is at least 25% over the maximum operating speed


Noise control

Fan and motor assembly is mounted on vibration isolators to minimize noise transmission into the building


Reliable fan performance

Air performance ratings from Accurex's accredited test chamber ensure accurate data


Factory wired and tested

All units are tested prior to shipment for proper operation of the gas train, electrical components and airflow


Cooling Options

Evaporative cooling, chilled water or direct expansion (DX cooling)

Options and Accessories

All our products can be configured to fit your specific needs. 
See all options & accessories

Performance & Certification

ETL Listed to ANSI Z83.4-1999, CSA 3.7-M99 or ANSI Z83.18-2000

Model Designation Guide