Doas_Energy_Rec_Hero_LR_1920x450_Tiny
DEDICATED OUTDOOR AIR

DOAS ROOFTOPS WITH ENERGY RECOVERY

OUTDOOR AIR EXPERTSROBUST DESIGNSDEDICATED SUPPORT
Home r-arrow Products r-arrow
THREE INTEGRAL ENERGY RECOVERY OPTIONS

ENTHALPY WHEELS

  • 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 and VPRE units

ENTHALPIC PLATE

  • Latent and sensible recovery
  • No moving parts
  • Water-washable

Valent's enthalpic plate heat exchangers have minimal maintenance requirements, an exhaust air transfer ratio (EATR) of less than 1%, and can safely handle accumulated condensate without sustaining frost damage. Available on Valent VPRC units

SENSIBLE PLATE

  • Sensible energy recovery
  • No moving parts
  • All aluminum construction

Valent's sensible plate heat exchangers allow minimal cross-air leakage, have a low pressure drop, and are easily cleanable. Commonly used in dry climates, they are also effective in high humidity spaces such as pools, or where cross-contamination is a concern. Available on Valent VPRP units

OVERVIEW: INTEGRAL ENERGY RECOVERY DOAS UNITS

Cooling Capacity

  • 4-70 tons

Airflow Capacity

  • 550-18,000 cfm

Cooling Options

  • Packaged air-cooled
  • Split air-cooled
  • Water source heat pump
  • Air source heat pump
  • Chilled water
  • Inverter or digital scroll compressors
  • Modulating hot gas reheat
  • Modulating EC condensing fans
  • Staged AC condensing fans

Heating Options

  • Indirect gas 75-1,200 MBh
  • Up to 16:1 turndown furnaces
  • Electric 15-200 kW
  • Temperator
  • Hot water
  • Steam coil

Control Options

  • Full controls
  • Heat-cool only control

Energy Recovery Options

  • Enthalpy wheels (polymer, aluminum)
  • Enthalpic plate heat exchanger
  • Sensible plate heat exchanger

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
LEARN MORE