Course Overview: 

18 Modules

This course provides students with foundational knowledge and hands-on experience in HVAC diagnostics, blending modern digital tools, measurement best practices, and emerging refrigerant safety requirements. The curriculum is delivered as three 8-hour seminars (24 hours total), designed to build technician confidence in diagnosing airflow, system performance, and refrigerant-related issues—including the industry shift to A2L low-GWP refrigerants. Where feasible, the course may also include an optional in-field shadowing experience with an HVAC professional to reinforce real-world diagnostic workflow and safety expectations. 

Course Objectives: 

  • Understand core HVAC diagnostic principles and how airflow, charge, and electrical performance relate to comfort and equipment reliability 
  • Perform accurate airflow and static pressure measurements and interpret results 
  • Use connected (IoT-enabled) diagnostic tools and mobile apps to collect, analyze, and report system data 
  • Apply systematic troubleshooting processes to common HVAC performance complaints 
  • Create clear customer-facing documentation and recommendations based on measured data 
  • Understand A2L refrigerant fundamentals, safety classifications, handling requirements, and best practices for service and installation readiness 

Module Breakdown: 

Modules 1–6: Seminar 1 (8 Hours) — IoT Fast Track Airflow (TrueFlow) 

  • Topics: HVAC system airflow principles; importance of accurate airflow measurement; Digital TrueFlow Air Handler Flow Meter; fundamentals of static pressure and CFM. 
  • Activities: 
    • Device setup and app configuration 
    • Airflow testing practice 
    • Interpreting readings and identifying common airflow issues 
    • Hands-on practice scenarios and discussion 
  • Assessment: Practical checks during lab activities; end-of-day review/Q&A. 

Module 1: Introduction to HVAC Airflow Testing (Hour 1) 

  • Overview of HVAC system airflow principles 
  • Importance of accurate airflow measurement 
  • Introduction to the Digital TrueFlow Air Handler Flow Meter 
  • Course objectives and expectations 

Module 2: Understanding the TrueFlow Air Handler Flow Meter (Hour 2) 

  • Components and functions of the TrueFlow meter 
  • How TrueFlow integrates with IoT technology 
  • Setting up the TrueFlow meter with Android and iOS devices 
  • Hands-on practice: device setup and configuration 

Module 3: Basics of Airflow Testing (Hour 3) 

  • Introduction to airflow and static pressure concepts 
  • Understanding cubic feet per minute (CFM) measurements 
  • Measuring static pressure in HVAC systems 
  • Hands-on practice: basic airflow testing 

Module 4: Connecting TrueFlow to IoT Devices (Hour 4) 

  • Pairing TrueFlow with smartphones/tablets 
  • Navigating the TrueFlow app interface 
  • Data collection and transmission using IoT technology 
  • Hands-on practice: data collection and app navigation 

Module 5: Conducting Airflow Tests (Hour 5) 

  • Step-by-step guide to performing airflow tests 
  • Interpreting TrueFlow readings 
  • Common airflow issues detected by TrueFlow 
  • Hands-on practice: conducting full airflow tests 

Module 6: Advanced Airflow Diagnostics + Reporting + Review (Hours 6–8) 

  • Identifying and diagnosing complex airflow issues 
  • Using TrueFlow for preventive maintenance recommendations 
  • Case studies: real-world airflow problems and solutions 
  • Creating and customizing reports with the TrueFlow app 
  • Using reports to communicate findings to customers; best practices for presentation 

Modules 7–12: Seminar 2 (8 Hours) — IoT Fast Track Measurements (measureQuick + Smart Probes) 

  • Topics: IoT in HVAC measurement; app-based diagnostics; smart probes; refrigerant, electrical, airflow, and static pressure diagnostics; reporting and documentation. 
  • Activities: Connecting probes and gauges; diagnosing scenarios; generating reports; presenting findings. 
  • Assessment: Scenario-based troubleshooting performance; participant presentation. 

Module 7: Introduction to IoT in HVAC (Hour 1) 

  • Overview of IoT technology in HVAC systems 
  • Introduction to smart probes and their role in HVAC 
  • Overview of the measureQuick app and its applications 
  • Course objectives and outcomes 

Module 8: Setting Up the measureQuick App (Hour 2) 

  • Downloading and installing the measureQuick app 
  • Navigating the app interface 
  • Connecting Bluetooth probes and gauges 
  • Initial app configuration 

Module 9: Introduction to Smart Probes (Hour 3) 

  • Types of smart probes 
  • Connecting smart probes to the measureQuick app 
  • Calibration and maintenance of probes 
  • Hands-on practice: connecting and configuring probes 

Module 10: Diagnosing Refrigerant Issues (Hour 4) 

  • Understanding refrigerant diagnostics with smart probes 
  • Using the measureQuick app to monitor refrigerant conditions 
  • Common refrigerant issues and solutions 
  • Hands-on practice: diagnosing refrigerant issues 

Module 11: Diagnosing Electrical + Airflow/Static Pressure Issues (Hours 5–7) 

  • Basics of electrical diagnostics in HVAC 
  • Using smart probes to monitor electrical parameters 
  • Electrical issue indicators in the measureQuick app 
  • Importance of airflow in HVAC performance 
  • Using the measureQuick app to diagnose airflow issues 
  • Understanding static pressure in duct systems; installing test ports 
  • Using smart probes to measure static pressure 
  • Hands-on practice: electrical, airflow, and static pressure diagnostics 

Module 12: Advanced Diagnostics + Reporting + Closeout (Hour 8) 

  • In-depth use of vitals, reports, and scorecards in the app 
  • Advanced troubleshooting techniques 
  • Creating reports with the measureQuick app 
  • Best practices for documentation 
  • Final Q&A and closing 

Modules 13–18: Seminar 3 (8 Hours) — New Refrigerant Technology (A2L) + Optional In-Field Shadowing 

  • Topics: Refrigerant transition drivers; A2L classification and properties; safety, codes/standards awareness; tools and best practices; installation/service workflow impacts; customer communication; documentation. 
  • Activities: Safety planning, leak response scenarios, equipment readiness checklists, mock customer communication, and optional field shadowing. 
  • Assessment: Safety/handling knowledge check; scenario-based performance; reflection or field log (if shadowing is used). 

Module 13: Refrigerant Landscape + Why A2L (Hour 1) 

  • Refrigerant evolution and drivers (environmental and regulatory overview) 
  • What “A2L” means (toxicity/flammability classification conceptually) 
  • Differences in handling mindset vs. A1 refrigerants 
  • Course expectations and safety-first culture for Seminar 3 

Module 14: A2L Properties, Risks, and Core Safety Concepts (Hour 2) 

  • Mild flammability: what it is and what it is not 
  • Ignition sources and risk controls in service environments 
  • Ventilation concepts and work area considerations 
  • Personal protective equipment (PPE) overview and jobsite readiness 

Module 15: Tools, Equipment, and Jobsite Readiness for A2L (Hour 3) 

  • Recovery machines, vacuum pumps, cylinders: readiness considerations and labeling/segregation habits 
  • Leak detection basics and best practices Brazing/soldering and hot-work awareness (general safe practices and planning) 
  • Pre-job checklist activity: “Is this site ready for A2L work?” 

Module 16: Installation/Service Workflow Impacts (Hour 4) 

  • Typical install/service steps affected by A2L requirements 
  • Charging and commissioning mindset: precision, documentation, and repeatable process 
  • What to record: model/serial, refrigerant type, charge-related notes, test results, and customer signoff practices 
  • Hands-on/tabletop exercise: workflow mapping for a service call using A2L equipment 

Module 17: Diagnostics Scenarios + Leak Response (Hours 5–6) 

  • Scenario-based troubleshooting: suspected leak, nuisance trips, poor performance complaint 
  • Leak response planning: immediate actions, communication, and documenting findings 
  • Role-play: technician-to-customer explanation of findings and next steps 
  • Lab/tabletop: documentation packet creation (checklist + service notes + recommendations) 

Module 18: Optional In-Field Shadowing OR Capstone Lab + Review (Hours 7–8) 

  • Choose one delivery option (or blend both based on scheduling and partner availability): 
  • Option A: In-Field Shadowing (Preferred when available) 
  • Students shadow a qualified HVAC professional in the field (small groups) 
  • Focus: safety briefing, diagnostic workflow observation, tool handling awareness, customer communication 
  • Student deliverable: field log with “what was measured,” “what was concluded,” and “what would I do next time” 
  • Option B: On-Site Capstone Lab / Mock Service Calls 
  • Rotating stations: airflow/static pressure; electrical checks; refrigerant diagnostics; A2L readiness 
  • Students present findings and recommendations 
  • Final Q&A, course feedback, and completion recognition 

Additional Experiential Learning and Activities: 

To further enhance learning, the course may include opportunities for real-world exposure and professional insight into HVAC diagnostics and emerging refrigerant practices: 

  • Guest Speakers: Local HVAC contractors, distributors, or safety/compliance professionals discuss tool selection, best practices, and the A2L transition. 
  • Lab-Based Demonstrations: Live measurement demonstrations (airflow, static pressure, app-based reporting). 
  • Field Experiences (Optional): Structured in-field shadowing aligned to Seminar 3, emphasizing jobsite safety, diagnostic workflow, and documentation habits. 

These activities aim to broaden participant perspective, provide practical career insight, and reinforce real-world diagnostic workflow and safety practices. 

Program Cost 

The HVAC Diagnostics course is offered at a fee of $3,000 per student. This all-inclusive cost covers the following: 

  • Tuition and Instructional Support:
    • Instructor-led training, lab activities, and facilitated practice scenarios. 
  • Curriculum and Tooling Access:
    • Course materials and any required app/tool access used during training. 
  • Experiential Learning Activities: 
    • Honorariums for guest speakers to discuss career pathways in HVAC technology are covered under the comprehensive per participant fee.  

The $3,000 per student fee ensures a comprehensive educational experience, blending theoretical knowledge, practical skill-building, and exposure to real-world applications, while also preparing students for professional integration of IoT devices and advanced technologies in HVAC operations.