Welcome to BTRAC’s collection of heavy-duty HVAC resources—your one-stop destination for mobile A/C and refrigeration guides, technical manuals, and troubleshooting support. Whether you’re maintaining a truck air conditioning system, upgrading an off-road HVAC unit, or repairing a transport refrigeration setup, you’ll find practical answers and expert materials here. In addition, we’ve gathered Red Dot and Sy–Klone product resources, HVAC service diagrams, and A/C parts reference materials in one easy-to-navigate place. As a result, technicians, OEMs, and fleet operators can quickly locate the information they need to keep systems performing at their best. At Badger Truck Refrigeration, we’re proud to provide training tools, repair info, and product documentation that help keep your equipment running reliably in any environment.