We offer the most competitive prices for HVAC Heating Cooling Air Conditioning products and installation in Arlington – Alexandria – Northern Virginia – Washington DC and Maryland
Built-up Systems Self-Contained Unit Ventilators

Call Perry Aire today 703-521-2226!


Offering Daikin Built-up Systems Self-Contained Unit Ventilators in:

VIRGINIA: Arlington, Alexandria, Annandale, Arlington, Ashburn, Burke, Centreville, Chantilly, Crystal City, Dale City, Dulles, Fairfax, Falls Church, Fort Belvoir, Great Falls, Herndon, Leesburg, Lincoln, Lorton, Manassas, McLean, Oakton, Purcellville, Reston, Springfield, Stafford, Sterling, Vienna, Woodbridge.

MARYLAND: Annapolis, Aspen Hill, Beltsville, Bethesda, Chevy Chase, College Park, Gaithersburg, Hampstead, Hyattsville, Lanham, Laurel, Montgomery Village, Potomac, Rockville, Silver Spring, Takoma Park, Temple Hills, National Harbor, Cabin John, East Riverdale, Riverdale, Landover, Cheverly, Oxon Hill, Fort Washington, Indian head, Morningside.


For nearly a century schools have relied on unit ventilators to keep classrooms comfortable. Students learn more readily in a quiet, well-ventilated environment. That is why Herman Nelson invented the unit ventilator in 1918. Through the decades unit ventilators produced by Herman Nelson, AAF and McQuay have set the industry standard for performance, features and quality.

Today Daikin remains committed to continuing the Herman Nelson-AAF-McQuay legacy as the industry leader and meeting the changing requirements of schools with the highest quality unit ventilator products available. In addition, we realize that keeping expenditures down is a high priority for school administrators and school boards.

Our unit ventilators are inexpensive to install and operate, and they are designed and built with dependable and efficient features that provide for years of trouble-free service.

  • Built-up floor and ceiling units, plus air source air conditioner, air-to-air heat pump or water source heat pump (boiler/tower and geothermal)
  • Draw-through design with face and bypass damper control for superior temperature and dehumidification control
  • GentleFlo® air moving system for very quiet operation
  • Welded frame construction and industrial strength cabinet and finish for long life
  • Unique draw-thru design provides uniform air distribution across the coil for even discharge air temperatures
  • Controls flexibility—MicroTech® II controls with our Open Choices® feature for easy integration with the BAS of your choice
  • Digital Ready® feature provides industry standard Direct Digital Control (DDC) components for easy integration of unit controllers by others
  • Economizer, Demand Control Ventilation (DCV) and Part Load, Variable Air options allow you to reduce operating costs while closely matching classroom comfort requirements