Back to top

Commercial Ventilation Systems

Atherion Packaged Ventilation System

The Atherion is the ideal solution to bring fresh, tempered outside air into your facility, regardless of your geographic location. Whether you are in the humidity-soaked air of the Southeastern United States, in the drier, milder air of the West, or the four-season-friendly confines of the upper Midwest and Northeast, the Atherion can be customized to meet your outside ventilation air requirements. And by including the advanced Energy Recovery Module option, your system becomes a high efficiency, 100% dedicated outside air unit, potentially saving you thousands in annual energy costs.
  • Specifiable features, including high efficiency gas-fired heating levels up to 94% for significant cost savings and a Coastal Coat Package for corrosive environment protection
  • Easy online selection, quotes and ordering through Modine’s exclusive Breeze™ AccuSpec
  • CSI-formatted specifications available, saving engineers valuable time
  • Maximized equipment performance and compatibility with the Modine Controls System
  • Outstanding service and start-up support ensures reliability for today, and tomorrow
  • Designed to meet the latest ASHRAE 189.1 and 62.1 standards for IEER efficiency, green building and indoor air quality


  • Robust 2” double-wall construction and standing roof seam for strength and durability
  • Pre-painted G90 galvanized steel with an attractive finish verified capable of withstanding a minimum 2,500 hour salt spray and fog atmosphere exposure in accordance with ASTM B117 test procedures
  • Full-length, piano-hinged access doors for accessibility and easy-to-open quarter-turn latches
  • Stainless steel, double-sloped drain pan prevents corrosion and avoids standing water for improved IAQ


  • Low leak air dampers provide up to 100% outside air; come equipped with direct drive controls and provide 4 cfm/ft2 meet the latest ASHRAE Standards 189.1 and 90.1


  • Best-in-class MERV16 filtration with 2” pre-filters up to MERV 15 and 4” final filters up to MERV 16


  • Energy efficient airfoil plenum with easy service access from slide-out and pivot capability


  • PF™ microchannel condenser coils from the company that Invented them – Modine
  • Reduced depth for lower air side static pressure and lower refrigerant volumes
  • Modulating variable speed head pressure control regulates refrigerant pressure for use in low ambient
  • Temperatures, providing energy savings when fans running at reduced speeds
  • Modulating tandem digital scroll compressors standard
  • Modulating hot gas reheat provides enhanced supply air temperature control during dehumidification without using additional energy
  • Electronic expansion valve provides superior superheat control


  • Factory designed, programmed, and installed Modine Controls Systems integrates the controls, providing interoperability with BACnet® or LonWorks®, for simple integration into building automation systems


  • High efficient gas heating available with Modine’s proven Conservicore® technology
  • Standard stainless steel heat exchanger ensures long life with maximum heat transfer – up to 100°F temperature rise
  • Optional electric or hot water heat with SCR control (up to 100kw)


  • Maximum 8,700 CFM outdoor air with optional built-in bypass for efficient operation
  • 4Å zeolite coated aluminum wheel which, unlike silica based desiccants on polymer substrates, absorb no odors while providing outstanding heat transfer
  • MERV10 fresh air filters
  • Low static pressure with higher efficiency
  • Optional pre-heat for frost control
  • Slide out energy wheel and exhaust blower/motor access panel for serviceability and maintenance
  • B-cabinet sizes include integrated energy recovery