GeoComfort Commercial Rooftop ERE water-to-air units can introduce a fixed amount of outside year-round or a modulating Economizer can provide free cooling when outdoor conditions are favorable. These units are designed for an extended range of source water temperatures, which makes them suitable for closed-loop or ground-source closed loop systems. Exceeding ASHRAE 90.1 efficiencies (40 percent better than standard rooftop units), these systems are ideal for large commercial buildings, public institutions, schools, etc.



  • Capacity: 3 - 20 tons
  • Efficiencies: Up to 23.5 EER / 5.1 COP
  • Voltages: 208-230/60/3, 460/60/3, 575/60/3
  • Coaxial heat exchanger
  • Built-in freeze protection
  • Heavy gauge steel
  • Single-speed scroll (up to 072) or dual scroll compressors (larger units)
  • DDC controls optional
  • Hot gas reheat and hot gas bypass optional
  • Water-side economizer optional
  • Standard and extended range options available
  • Belt drive blowers with various configurations
  • Internal pump optional
  • Internal two-way valve optional
Document Downloads:
We offer many optional accessories for each of our geothermal units:

See Our Systems In Use

View a few of our past projects to see GeoComfort Geothermal systems in real-life applications.
by Enertech Global, LLC
2506 S Elm Street
Greenville, IL 62246