Section 1: Safety and Trade Practices
General Learning Outcomes
Upon successful completion, the apprentice will be able to:
- Maintain a safe work environment by identifying workplace hazards, describing procedures used to handle, store, transport and dispose of hazardous materials as well as the procedures used to remediate the potential dangers related to workplace hazards.
- Demonstrate knowledge of codes and regulations pertaining to a safe work environment by interpreting codes and regulations pertaining to workplace hazards and safe work practices.
- Use, apply and navigate the Occupational Health and Safety Act, relevant manuals, Safety Bulletins, Employer and Site-Specific Policies and Procedures as well as explain how to use, apply and complete Reporting Documentation.
- Maintain a safe workplace by identifying safety practices describing how to mitigate hazards, handle hazardous materials responsibly, and implement procedures to prevent accidents and ensure a safe working environment.
Introduction to Workplace Safety
The refrigeration and air conditioning trade involves working with complex systems, electrical components, pressurized equipment, and potentially hazardous materials. As an apprentice entering this field, your first and most important responsibility is to ensure the safety of yourself, your coworkers, and the public. This chapter provides you with the foundational knowledge necessary to work safely and in compliance with applicable codes and regulations.
Safety in the workplace is not simply about following rules, it is about developing a mindset that prioritizes hazard recognition, risk assessment, and proactive prevention. Every day on the job site, you will encounter situations that require sound judgment and adherence to established safety protocols. Understanding the regulations, using proper personal protective equipment (PPE), and maintaining safe work practices are essential skills that will serve you throughout your career.
Section 1 — Lessons at a Glance
Section 1 moves from foundational legislation through hazard control to hands-on safe work practices. The lessons are cumulative — codes and the OHSA (1.01, 1.02) provide the legal framework that governs how hazardous materials, workplace hazards, and PPE requirements are applied in the lessons that follow.
Codes & Regulations
Ontario legislation, Federal codes, and CSA standards governing the HVAC/R workplace. How to locate, read, and apply regulations relevant to daily trade work and site-specific policies.
Go to lesson ›Occupational Health & Safety Act (OHSA)
Rights and duties of employers, supervisors, and workers under the OHSA. How to navigate the Act, use Safety Bulletins, and complete incident and near-miss reporting documentation.
Go to lesson ›Hazardous Materials
WHMIS 2015, Safety Data Sheets (SDS), and refrigerant handling regulations. Procedures for safe handling, storage, transport, and disposal of hazardous substances found in the refrigeration trade.
Go to lesson ›Workplace Hazards
Systematic hazard identification and risk assessment. Physical, chemical, biological, and ergonomic hazards common to HVAC/R work sites and applying the hierarchy of controls to each.
Go to lesson ›PPE & Safety Equipment
Selection, inspection, fitting, and maintenance of personal protective equipment required in the refrigeration trade: eye, hearing, respiratory, hand, foot, and fall protection.
Go to lesson ›Recognize & Control Hazards
Applying the hierarchy of hazard controls to real HVAC/R scenarios. Safe work practices, job hazard analysis (JHA), and procedures for stopping work when conditions are unsafe.
Go to lesson ›Lock Out and Tag Out (LOTO)
Lockout/tagout procedures for isolating electrical, pneumatic, and refrigerant energy sources. OHSA requirements, group lockout procedures, and verification steps before any service work begins.
Go to lesson ›Key Safety Principles
Safety is the foundation of professionalism in the refrigeration and air conditioning trade. The knowledge and practices covered in this chapter will serve you throughout your apprenticeship and career. Remember:
- Your safety and the safety of your coworkers is your primary responsibility
- Always take time to identify and assess hazards before beginning work
- Use appropriate PPE and follow established procedures
- Never take shortcuts that compromise safety
- Speak up if you observe unsafe conditions or practices
- Continuously learn and update your knowledge as regulations and best practices evolve
As you progress through your apprenticeship, you will develop the judgment and experience necessary to work safely in diverse and challenging situations. Stay curious, ask questions, and always prioritize safety above all else.