Makeup Air and Dedicated Outdoor Air Systems

Makeup Air (MUA) usually refers to applications with exhaust air. The MUA system conditions and replaces the air that is exhausted so that the building doesn't suffer from negative indoor air pressure.

  • Commercial kitchens
  • Paint booths
  • Labs
  • Other industrial applications that require large amounts of exhaust air

Dedicated Outdoor Air Systems (DOAS) are normally applied to buildings to supply ventilation for comfort of the occupants (schools, churches, retail, medical offices, etc.).

  • Hotel & motel corridor air conditioning
  • Restaurants & Bars
  • Medical facilities
  • Retail shops

Reznor provides all types of HVAC equipment that can heat, cool, or even dehumidify the fresh outdoor air supplied to the space.

Provides the customer with a solution that is effective at all conditions due to the excellent modulation of capacity.

Product Features

Supply Fan

  • 1,000 - 9,000 CFM
  • Forward Curve Blowers
  • Belt Driven, Adjustable Sheave System
  • Horizontal or Vertical Discharge
  • Vibration Isolated Fan and Motor System
  • Fan and Motor Lube Lines for Servicing
  • Power Exhaust

Mechanical Cooling

  • R410A Refrigerant (Environmentally Friendly)
  • High Outside Air Applications
  • 10% - 100% Capacity Control
  • Modulated Capacity Scroll Compressor with internal motor overload
  • Compressor Anti-Cycle Programming
  • Mechanical Gauge Connections
  • Fully Interlaced Coils


  • Double Wall Construction Standard - R7 or higher value
  • Hinged Access Doors with Handles
  • Easy Access Compressor Section
  • Filters (MERV8 minimum)
  • Slide out and Sloped Stainless Steel Condensate Drain Pan
  • 4 - 6 Point Base Lifting Connections
  • G90 Galvanized Steel Substrate, 60 Gloss Finish
  • Hold Door Open Service Hinges


  • Isolated High Voltage Compartment
  • Controller Output LED Status
  • Test Mode
  • Field Selectable Unit Configuration and Unit Mounted Display


  • Standard one (1) Year Parts Warranty