Modified Window Units

Tru-Temp™ Modified Window Units

Northern Air Systems Tru-Temp™ Modified Window Units are for use in hazardous locations. These units are available from 6,000 to 36,000 BTU/HR and are typically used for buildings within Hazardous Locations for Refining, Oil & Gas, Plastics and Marine applications. All our units are fully tested prior to shipping.

Classification “Class1, Groups B, C & D, Division 2”.


  • Mobile Medical
  • Television Broadcast
  • Command Centers
  • Marine
  • Hazardous Locations
  • Oil & Gas
  • Drilling Rigs
  • Refineries
  • Plastic Manufacturers
  • Military
  • Custom


  • Corrosion Resistant Coil and Cabinet Coatings
  • Copper Tube/ Copper Fin Coils
  • Stainless Steel Housing
  • Service Ports Installed
  • Built-in or Remote Controls
  • 50 Hz Units
  • Custom options available on request
  • NEC & IEC Compliant
  • Third Party Certification