Mobile Medical Environmental Control Units


Northern Air Tru-Temp™ Mobile Medical solutions provide critical equipment cooling and air conditioning for human services providers in mobile medical applications. Our packaged HVAC systems are mounted on semi-trailers containing crucial medical equipment and services in remote locations and underserved communities including MRIs and CT scanners, mammography screening, mobile surgical suites. Other uses are for equipment and personnel sterilization and decontamination, and pharmaceutical drug compounding. Approved for use with Siemens, GE, Philips, United Imaging and many more OEM medical systems.

Our Mobile Medical Systems Are Used Worldwide

  • Medical companies and emergency medical services all over the world use Northern Air Systems as their go-to manufacturer for the most reliable HVAC units in the field today.
  • Northern Air Systems Tru-Temp™ Mobile Medical HVAC Units are designed for extreme temperatures from -40° to 131° F.
  • Available in DX air conditioning, DX chilled water (chiller), or DX combination chiller and air conditioning.

Special Operational Features:

  • 24/7 continuous run operation
  • Operation while traveling down the road on a generator, operation while plugged into shore power at a hospital or imaging center.
  • Multi-zone capability
  • Maintains multiple space and equipment temperatures while containing just a single refrigerant circuit (multiple refrigeration circuits available)
  • Full humidity control (dehumidification and humidification)
  • Complete package provided to enable quick and easy installation and integration
  • Internal and external humidifiers
  • Internal and external glycol pumps and buffer tanks
  • Remote duct heaters
  • Integrated control panels


  • Refrigerants: application specific available (R-134A, R-407C, R-410A)
  • Panels: integrated and remote-control available
  • Microprocessor controlled (PLC): fully adjustable and customizable control settings
  • Compressors: application specific – scroll, digital scroll, staged semi-hermetic
  • Voltages: application specific – 208-600VAC, 1ph and 3ph, 50Hz and 60Hz
  • Interior: copper tube, aluminum fin evaporator and condenser coils
  • Motors: high quality precision balanced evaporator and condenser fan motors. Variable speed motors available.
  • Construction: galvanized steel, aluminum, or stainless-steel
    • Larger units have structural steel Frame with Gator shield anti-corrosive coating
  • Protection: Paint and polyester powder coat finish available
  • Dehumidification capability
  • Modulating cooling capacity capability
  • Extreme temperature operation
    • Low Ambient cooling capability down to -40° F
    • High Ambient cooling capability up to 131° F
  • Heat resistance: Integrated resistive heat packages available
  • Redundancy: Lead-Lag capable for interfacing with multiple units and to facilitate unit redundancy
  • Easy access: Removable and hinged access doors for maximum serviceability
  • Filtration: Standard MERV 8 filtration with higher capacity filtration available
  • Designed and built in accordance with application specific code requirements
    • Safety
    • Efficiency
    • Electrical


  • Custom package sizes and arrangements
  • Economizers
  • Fresh air intake hoods
  • Corrosion resistant coil coatings
  • Remote user interface controls
  • Lifting lugs
  • Duct flange connections
  • High efficiency filtration packages
  • Building management system interface (Modbus, BACnet)


Norther Air is ISO 9001:2015 Certified.
We can also meet optional NRTL certifications in accordance with UL, CSA and CE standards.

Our Customers

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