Air Conditioning Installer Course

Lesson 1 • Emergency Response Procedures

Covers first-aid response, emergency shutdown, and incident reporting for HVAC job sites. Prepares learners to act decisively when accidents occur.

Lesson 2 • Regulatory Compliance and Refrigerant Handling Rules

Introduces environmental and safety regulations governing refrigerant use and disposal. Establishes legal and ethical obligations learners must meet throughout their careers.

Lesson 3 • HVAC/R Trade Roles and Career Paths

Covers the scope of the air conditioning trade, job titles, and industry structure. Grounds learners in professional expectations before technical content begins.

Lesson 4 • Workplace Hazard Identification

Teaches recognition of electrical, chemical, mechanical, and fall hazards common on HVAC job sites. Directly supports safe behavior throughout all subsequent hands-on chapters.

Lesson 1 • Refrigerant Types and Properties

Compares HFC, HFO, and natural refrigerants by GWP, ODP, and application suitability. Prepares learners to select and handle refrigerants correctly in field scenarios.

Lesson 2 • System Efficiency Concepts

Introduces COP, EER, and SEER ratings as measures of system performance. Learners connect thermodynamic theory to real-world energy efficiency expectations.

Lesson 3 • The Refrigeration Cycle Explained

Traces refrigerant through compression, condensation, expansion, and evaporation stages. Learners map each stage to physical components before touching equipment.

Lesson 4 • Pressure-Temperature Relationships

Covers the pressure-temperature chart and saturation properties of common refrigerants. Learners use PT charts to diagnose system conditions in later chapters.

Lesson 1 • Basic Electrical Theory

Covers Ohm's Law, series and parallel circuits, and AC vs. DC power. Provides the electrical foundation required for all wiring and diagnostic tasks ahead.

Lesson 2 • Reading Wiring Diagrams and Schematics

Teaches interpretation of ladder diagrams, pictorial wiring diagrams, and component symbols. Learners trace circuits on paper before working on live equipment.

Lesson 3 • Safe Use of Electrical Test Instruments

Covers multimeter, clamp meter, and megohmmeter operation for HVAC diagnostics. Learners practice safe measurement techniques before live-equipment labs.

Lesson 4 • Motor Types and Electrical Characteristics

Explains single-phase and three-phase motors, PSC, ECM, and variable-speed drives. Connects motor theory to compressor and fan selection in system design.

Lesson 1 • Compressor Types and Operation

Covers reciprocating, scroll, rotary, and inverter compressors with their operating characteristics. Learners match compressor type to system capacity and application requirements.

Lesson 2 • Expansion Devices and Refrigerant Metering

Covers TXVs, EEVs, and fixed orifice devices with their control logic and adjustment. Learners select and set expansion devices based on system superheat targets.

Lesson 3 • Mini-Split and Multi-Zone Systems

Covers ductless mini-split architecture, multi-zone branch boxes, and inverter control. Learners plan basic multi-zone layouts and understand capacity distribution.

Lesson 4 • Split System vs. Packaged Unit Layouts

Compares indoor/outdoor split configurations with self-contained packaged units. Learners determine which system type suits residential, light commercial, or rooftop applications.

Lesson 1 • Refrigerant Charging Methods

Explains weight-based charging, subcooling method, and superheat method for different system types. Learners charge systems accurately using manufacturer specifications.

Lesson 2 • Leak Detection Techniques

Covers electronic leak detectors, UV dye, nitrogen pressure testing, and bubble solution. Learners locate and confirm refrigerant leaks before recharging systems.

Lesson 3 • Refrigerant Recovery Procedures

Teaches push-pull recovery, recovery machine operation, and cylinder management. Learners recover refrigerant to regulatory standards without venting.

Lesson 4 • Manifold Gauge Set Operation

Covers gauge set assembly, hose connection, valve operation, and pressure reading. Learners use manifold gauges correctly before performing any refrigerant service.

Lesson 1 • Electrical Wiring and Disconnect Installation

Covers power wiring, control wiring, disconnect switch, and grounding for AC units. Learners complete safe, code-compliant electrical connections on installed equipment.

Lesson 2 • Refrigerant Line Set Installation

Teaches copper tubing selection, bending, insulation, and support spacing for line sets. Learners install leak-free, properly supported refrigerant piping runs.

Lesson 3 • Brazing and Soldering Copper Joints

Covers torch setup, nitrogen purge brazing, and joint inspection for refrigerant piping. Learners produce leak-free brazed joints that meet industry quality standards.

Lesson 4 • Site Assessment and Equipment Placement

Covers load estimation basics, clearance requirements, and structural support evaluation. Learners select optimal unit locations before any mechanical work begins.

Lesson 5 • Condensate Drain System Installation

Explains primary and secondary drain line sizing, trap installation, and overflow protection. Learners install condensate systems that prevent water damage and biological growth.

Lesson 1 • Airflow and Heat Exchanger Problems

Covers dirty coils, blocked filters, failed blower motors, and duct leakage as performance causes. Learners measure airflow and temperature split to confirm airflow-related faults.

Lesson 2 • Refrigerant-Side Fault Diagnosis

Covers low charge, overcharge, restriction, and non-condensable gas faults using gauge readings. Learners interpret pressure and temperature data to identify refrigerant-side problems.

Lesson 3 • Diagnostic Methodology and Workflow

Introduces a structured symptom-to-cause diagnostic process using data collection and elimination. Learners apply this framework to every fault scenario in the chapter.

Lesson 4 • Compressor Fault Diagnosis

Explains hard-start conditions, valve failures, and compressor burnout identification. Learners determine whether a compressor requires replacement or can be restored.

Lesson 1 • Condensate System and Drain Maintenance

Covers drain pan cleaning, drain line flushing, trap priming, and condensate pump testing. Learners prevent water damage and mould growth through routine drain maintenance.

Lesson 2 • Electrical Component Inspection and Testing

Covers capacitor testing, contactor inspection, wire terminal tightening, and voltage verification. Learners identify components near end-of-life before failure occurs.

Lesson 3 • Service Documentation and Customer Communication

Teaches completion of service reports, equipment history logs, and customer-facing maintenance summaries. Learners deliver professional documentation that supports repeat business.

Lesson 4 • Maintenance Planning and Scheduling

Covers seasonal maintenance timing, service agreement structures, and priority task sequencing. Learners build a maintenance plan that aligns with manufacturer and industry recommendations.

Lesson 5 • Refrigerant System Checks During Maintenance

Explains non-invasive refrigerant checks using temperature and pressure data during maintenance visits. Learners detect developing refrigerant issues without unnecessary system access.