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Trane ComfortSite is an extranet site designed to save you time. With your secure login, you can:

  • Order Equipment, Parts, Literature and track Order Status
  • View product literature
  • Register for Training programs
  • Complete Warranty requirements online
  • Search for specific Product Information
  • Use interactive Product Support functions
  • View and print invoices through Account Track Online
  • and More
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Trane Connect

This is the login for Trane® Connect™ and other Trane® commercial applications. Trane® Connect™ is our secure, cloud-based customer portal to access your building systems to remotely monitor and manage building systems, and conduct routine maintenance.

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Horizon® Dedicated Outdoor Air Systems

Horizon® Dedicated Outdoor Air Systems

Horizon® Dedicated Outdoor Air Systems

For buildings with the highest performance requirements, Trane’s Horizon Dedicated Outdoor Air System (DOAS) helps improve indoor air quality (IAQ) to keep your building optimized and your people comfortable. It eliminates excess moisture, preventing discomfort and the health risks associated with mold and microbial growth. Horizon DOAS is designed specifically to condition up to 100% outside air year-round, reduce latent loads, enhance the entire building system's comfort and energy efficiency, and maintain your building's health.

  • Condition up to 100% outside air to help you meet ventilation code requirements. Precision performance for year-round dehumidification control
  • ≥ 43oF dewpoint at full and part load far exceeds traditional standards for occupant comfort
  • AHRI 920 Compliant
  • 3-80 Ton Units
  • Ideal for commercial buildings with high or fluctuating ventilation rates
  • Modulating hot gas reheat
  • Double-wall insulation for efficiency and quieter operation
  • Configurable to suit your needs
    • With or without ERV
    • Air cooled
    • Water cooled
    • Electric heat
    • Gas heat
    • Air source heat pumps
    • Water source heat pumps
    • Direct/indirect fired
    • Hot water
    • Dual fuel
    • CW/HW AHUs

Related Products

Horizon® Flex

Application-Specific Dedicated Outdoor Air Systems

Not every building requires 100% outdoor air or a very low dewpoint, so why invest in more equipment than you need? While our Horizon Flex unit can deliver 100% outdoor air, many customers find that their application requires more than what is delivered in a standard unit but less than a 100% outdoor air, making the Horizon Flex the ideal choice for lower upfront costs.

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