Safety checklist — Refrigeration / HVAC
Installation and maintenance of refrigeration and ventilation systems. Compliant with Québec's Construction Safety Code (CSTC) and CNESST standards.
Before work
9 items- ✓
PPE worn: insulated gloves (cold/chemical), safety glasses, boots, hard hat
- ✓
SDS for refrigerants reviewed — toxicity and flammability known
- ✓
Refrigerant leak detector functional
- ✓
System shut down and pressure released if required
- ✓
Room ventilation ensured (prevent gas buildup)
- ✓
Refrigerant handling with respirator if inhalation risk
- ✓
Brazing: hot work permit + fire extinguisher
- ✓
Pressure fittings tested before putting back in service
- ✓
Refrigerant recovered — never vented to atmosphere
After work
4 items- ✓
Circuit leak test performed
- ✓
Recovered refrigerant stored per regulations
- ✓
System re-commissioned in controlled manner
- ✓
Area cleaned and tools stored
More checklists — Mechanical & Electrical
More safety checklists
Risks and prevention — Refrigeration and HVAC
Refrigeration and HVAC systems use refrigerants that can cause frostbite on contact and asphyxiation in confined spaces. RSST and the Mechanical Refrigeration Code govern handling of these products. Technicians must hold required certifications.
Rooftop unit installation combines fall risks, heavy lifting (crane), and weather exposure. Electrical connections must comply with the Electrical Code and be made de-energized.
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