Modine Atherion Packaged Ventilation System

Atherion Packaged Ventilation System

 The Atherion® Commercial Packaged Ventilation Unit is the ideal solution to effectively and efficiently meet the challenge of conditioning high volumes of outside air for ventilation, 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 wide four-season-variation of the upper Midwest and Northeast, the unit can be customized to meet your outside ventilation air requirements.

With the Energy Recovery Exhaust option, your system is highly effective at recapturing energy from the building exhaust airstream, potentially saving thousands in annual energy costs.

The unit is fully selectable to meet job specific conditions and unit configuration requirements using our industry leading online selection system, Breeze™ AccuSpec that provides easy online selection, quotes and ordering.  CSI-formatted specifications available, saving engineers valuable time.

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Additional information on the Atherion Unit can be found on Modine's website.

Atherion Features



  • Modulating digital scroll compressor(s) standard for superior temperature control and part load efficiency.
  • Modulating variable speed head pressure control regulates refrigerant pressure over a wide range of ambient conditions.
  • Electronic expansion valve provides superior superheat control.
  • PF™ microchannel condenser coils from the company that invented them – Modine, reduces weight and refrigerant volumes.


  • While not standard, modulating gas heat is by far the most common heating system selected. This option includes a stainless steel heat exchanger as standard to ensure long life with up to 100°F temperature rise. 


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


  • Robust 2” double-wall construction and standing roof seam for strength and durability (insulated on roof, walls, AND floor)
  • 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
  • Stainless steel, double-sloped drain pan prevents corrosion and avoids standing water for improved IAQ
  • Ultra-Low Leak AMCA Class 1A dampers. Leakage rate 3cfm/ft2 exceeds many stringent code requirements, including ASHRAE 90.1 and 189.1.
  • Energy efficient direct drive supply air plenum fans on neoprene vibration isolators with high total static pressure capability.
  • 2” MERV 10 fresh air filters standard


  •  4Å Zeolite molecular sieve coated aluminum wheel which, unlike silica based desiccants on polymer substrates, absorb no odors while providing outstanding heat transfer.
  • Economizer Bypass for energy efficient operation
  • MERV10 fresh air filters
  • Low static pressure with higher efficiency
  • Slide out energy wheel and exhaust blower/motor access panel for serviceability and maintenance
  • Modine Control System intelligently controls energy recovery wheel operation, economizer bypass, frost control to maximize total system efficiency.


  • Full-length, piano-hinged access doors for accessibility and easy-to-open quarter-turn latches
  • Modine Control System features full unit diagnostics, alarm logging, real time display of live unit operating performance characteristics for temperature and pressures, etc.
  • Every unit undergoes rigorous end-of-line testing to verify proper operation of all systems prior to shipping.