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Rheem Essential

Dedicated Outdoor Air System (DOAS)

Dedicated Outdoor Air System (DOAS)
Dedicated Outdoor Air System (DOAS)
Dedicated Outdoor Air System (DOAS)
  • Energy Efficient, up to 21.3 IEER, which exceeds ASHRAE 90.1-2016
  • Industry-leading lead times to keep your project on schedule
  • Enhanced serviceability through standardized parts and service-friendly product design
  • The ultimate reliability package that includes complimentary Monitoring via CASLink with engineering support


High quality DOAS lineup that seamlessly integrates with Rheem commercial systems. These units help buildings conserve energy, offer precise temperature and humidity control, superior efficiency, and feature an industry-leading warranty. Designed with sustainability in mind, these units are built to last up to 25 years.

  • Comfort by Design
    • Fully modulating refrigeration and hot gas reheat components deliver the exact amount of air requested at the desired temperature and humidity
    • Variable speed components adjust heating and cooling capacity to match the required load
    • Consistent temperature is maintained, minimizing temperature swings and optimizing occupant comfort
  • Superior Efficiency
    • Modulating technologies allow for highest efficiencies at part-load conditions
    • Optimized controls allow for system integration between all modulating components
    • Up to 21.3 IEER rating, which is over 1.5x the ASHRAE 90.1-2016 IEER standard
  • Industry-Leading Reliability
    • Modulating speed/capacity equipment that can modulate to meet the exact loads, while staying continuously operational, avoids cycling and puts less wear and tear on the system.
    • Direct drive fans increase efficiency and allow for belt-less, maintenance free operation.
    • Reinforced with insulated double wall, galvanized steel construction

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