Air Conditioning Installation Course

Lesson 1 • Electrical Safety Fundamentals

Addresses lockout/tagout procedures, voltage testing, and safe wiring practices. Prevents electrical hazards during equipment connection and commissioning.

Lesson 2 • Worksite Organisation and Housekeeping

Establishes standards for tool storage, waste disposal, and site cleanliness. Reduces accidents and improves efficiency throughout the installation process.

Lesson 3 • Personal Protective Equipment

Specifies PPE requirements for refrigerant handling, electrical work, and confined spaces. Directly reduces injury risk during all installation activities.

Lesson 4 • Hand and Power Tools for HVAC

Covers selection, use, and maintenance of tube cutters, flaring tools, drills, and saws. Ensures correct tool application for each installation task.

Lesson 1 • Refrigeration Cycle Principles

Covers thermodynamic laws governing heat transfer and phase change in refrigerants. Establishes the scientific basis for all subsequent system operation topics.

Lesson 2 • AC System Classifications

Distinguishes split, packaged, mini-split, and central systems by design and application. Prepares students to select appropriate system types for given installations.

Lesson 3 • Core System Components Overview

Identifies compressors, condensers, evaporators, and expansion devices and their roles. Connects component function to overall system performance.

Lesson 4 • Airflow and Heat Load Concepts

Introduces airflow measurement, heat load sources, and their effect on system sizing. Links building thermal behaviour to equipment selection decisions.

Lesson 1 • Site Survey and Field Measurement

Applies plan-reading skills to verify field conditions against drawings before installation. Identifies discrepancies early to prevent costly rework.

Lesson 2 • Equipment Schedules and Specifications

Extracts model numbers, capacities, and performance data from equipment schedules. Links specification data to correct equipment selection and placement.

Lesson 3 • Installation Code Requirements

Surveys clearance, access, and support requirements mandated by mechanical and building codes. Ensures installations pass inspection and meet safety standards.

Lesson 4 • Electrical Diagrams and Wiring Schematics

Reads ladder diagrams, wiring schematics, and control circuit drawings for AC equipment. Prepares students to wire and troubleshoot control systems accurately.

Lesson 1 • Tube Cutting, Bending, and Deburring

Demonstrates proper cutting, bending, and deburring techniques to maintain tube integrity. Clean, smooth tube ends are essential for leak-free joints.

Lesson 2 • Pressure Testing and Leak Detection

Applies nitrogen pressure testing and electronic leak detection to verify joint integrity. Confirms system tightness before refrigerant charging.

Lesson 3 • Brazing Techniques and Joint Quality

Teaches torch selection, flux application, filler metal choice, and brazing procedure. Produces joints that withstand system operating pressures and temperatures.

Lesson 4 • Pipe Supports and Line Routing

Specifies hanger spacing, vibration isolation, and routing best practices for refrigerant lines. Proper support prevents fatigue failures and noise transmission.

Lesson 1 • Flexible Duct Installation

Addresses flexible duct selection, stretching, support, and connection to plenums and diffusers. Improper installation causes significant airflow restriction.

Lesson 2 • Duct System Design Principles

Covers equal friction, velocity reduction, and static pressure methods for duct sizing. Correct design ensures balanced airflow to all zones.

Lesson 3 • Duct Sealing and Insulation

Applies mastic, foil tape, and insulation to minimise air leakage and thermal loss. Sealed, insulated ducts are critical for system efficiency.

Lesson 4 • Duct Hangers and Penetration Sealing

Specifies hanger types, spacing, and fire-rated penetration sealing for duct systems. Ensures structural integrity and code compliance at wall and floor penetrations.

Lesson 1 • Contactor and Capacitor Wiring

Explains contactor coil circuits, run and start capacitor connections, and testing. These components control compressor and fan motor starting and running.

Lesson 2 • Thermostat and Control Board Wiring

Wires low-voltage thermostat cables, control boards, and zone controllers per diagrams. Accurate control wiring enables correct system staging and safety shutdowns.

Lesson 3 • Control Circuit Testing and Verification

Uses multimeters and sequence-of-operation charts to verify control circuit function. Systematic testing confirms correct operation before system startup.

Lesson 4 • Power Supply and Disconnect Requirements

Covers conductor sizing, overcurrent protection, and disconnect placement for AC units. Correct power supply wiring is the foundation of safe equipment operation.

Lesson 1 • Manifold Gauge Set Operation

Teaches gauge set connection, valve operation, and pressure reading interpretation. Accurate gauge use is essential for evacuation and charging tasks.

Lesson 2 • System Evacuation Procedures

Performs deep vacuum evacuation using a two-stage vacuum pump to remove moisture and air. Proper evacuation prevents acid formation and compressor failure.

Lesson 3 • Performance Verification and Documentation

Measures supply air temperature, static pressure, and amperage to confirm system performance. Recorded data serves as the baseline for future maintenance and warranty claims.

Lesson 4 • Pre-Startup Inspection Checklist

Verifies mechanical, electrical, and refrigerant connections before energising the system. A thorough pre-startup check prevents equipment damage on first startup.

Lesson 1 • Airflow and Duct System Problems

Identifies restricted filters, duct leakage, and imbalanced airflow using measurement tools. Airflow deficiencies degrade comfort and system efficiency significantly.

Lesson 2 • Refrigerant System Fault Diagnosis

Diagnoses overcharge, undercharge, restriction, and non-condensable gas faults using gauge readings. Refrigerant faults are amongst the most common causes of poor performance.

Lesson 3 • Systematic Troubleshooting Methodology

Introduces a structured fault-isolation process using symptom analysis and elimination. A repeatable method reduces diagnostic time and prevents misdiagnosis.

Lesson 4 • Electrical and Control Fault Diagnosis

Locates open circuits, failed capacitors, faulty contactors, and control board errors. Electrical faults account for a large share of AC service calls.