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DEDICATED OUTDOOR AIR

DOAS ROOFTOPS WITH ENERGY RECOVERY

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TWO INTEGRAL ENERGY RECOVERY OPTIONS

ENTHALPY WHEEL

  • Latent and sensible recovery
  • Most efficient
  • AHRI 1060 Certified

Valent's rotating enthalpy wheels recover up to 70% of return-air energy and slide out for easy access. Two enthalpy wheel types are available: a lightweight polymer wheel with silica gel desiccant and an aluminum wheel with molecular sieve media. Available on  Valent VXE units

ENTHALPY CORE

  • Latent and sensible recovery
  • No moving parts
  • Low cross contamination

Valent's enthalpy cores have minimal maintenance requirements and an exhaust air transfer ratio (EATR) of less than 1%. The core is available in two different media types: polymer and fiber. Both are easy to clean and maintain. The polymer core is up to 65% effective. Available on Valent VXC units

OVERVIEW: INTEGRAL ENERGY RECOVERY DOAS UNITS

Cooling Capacity

  • 3-70 tons

Airflow Capacity

  • 500-18,000 cfm

Cooling Options

  • Packaged air-cooled
  • Air source heat pump
  • Chilled water
  • Inverter scroll compressors
  • Modulating hot gas reheat
  • Modulating EC condensing fans

Heating Options

  • Indirect gas 75-1,200 MBh
  • Up to 16:1 turndown furnaces
  • Electric 5-200 kW
  • Hot water
  • Steam coil

Control Options

  • Full controls
  • Heat-cool only control

Energy Recovery Options

  • Enthalpy wheel (polymer, aluminum)
  • Enthalpy core heat exchanger (polymer, fiber)

Construction

  • 2" R-13 foam-injected insulated panels, floors, doors and roof
  • Multiple access doors with rugged handles
  • Internal space for maintenance access
  • Pre-painted casing
  • Sloped roof
  • Galvanized interior
  • Multiple duct connections

Certifications

  • AHRI 1060 certified (when equipped with enthalpy wheel or enthalpic plate heat exchanger)
  • ASHRAE 90.1 compliant
  • DOE energy-efficiency compliant

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