A2L Refrigerant Job Safety Analysis

Pre-job inspection template for servicing mildly flammable A2L refrigerant systems, with emphasis on ignition source control, ventilation, PPE, and charge-limit verification per ASHRAE 15-2022 and applicable OSHA/NFPA work practices.

Job Setup and Scope

• Work scope is defined and matches the actual task
  Verify whether the job is service, repair, recovery, leak check, installation, or commissioning, and confirm the scope matches the work order and site conditions.
• Refrigerant type confirmed as A2L
  Confirm the system refrigerant is identified as R-454B, R-32, or another approved A2L refrigerant before opening the circuit.
• System nameplate and service documentation available
  Verify the equipment nameplate, service manual, and refrigerant documentation are available at the job site.
• Competent person or qualified technician assigned
  Confirm the person leading the job is qualified to work on A2L refrigerant systems and understands the site-specific hazards.

Area Hazard Controls

• Ignition sources removed or controlled within the work zone
  Check for open flames, smoking, hot work, energized nonessential equipment, sparking tools, and other ignition sources in the immediate work area.
• Electrical equipment in the area is suitable for the hazard condition
  Verify temporary lighting, fans, vacuums, and portable equipment are appropriate for the area and positioned to avoid ignition risk.
• Ventilation is adequate for the task
  Confirm the space has sufficient natural or mechanical ventilation to prevent refrigerant accumulation during service.
• Area is isolated from unauthorized personnel
  Verify the work zone is barricaded, posted, or otherwise controlled to keep untrained persons away from the hazard area.

PPE and Tools

• Required PPE is available and worn
  Verify eye protection, gloves, and any additional PPE required by the task and site risk assessment are being used.
• Recovery and service tools are rated for refrigerant work
  Confirm hoses, gauges, recovery machine, cylinders, and leak-detection equipment are approved for the intended refrigerant and in good condition.
• Tools and cords are inspected and free of damage
  Check for frayed cords, damaged plugs, cracked housings, or other defects that could create an ignition or electrical hazard.
• Leak detection equipment is available and functional
  Verify the job has appropriate leak detection equipment and that it has been checked for operation before use.

Refrigerant Charge and System Limits

• Maximum allowable charge verified against the system and space conditions
  Confirm the installed or planned refrigerant charge is within the applicable limit for the equipment, room volume, and occupancy conditions.
• Room or enclosure volume documented
  Record the room or enclosure volume used to evaluate refrigerant charge limits and leak accumulation risk.
• Charge-limit calculation reviewed before service begins
  Verify the technician has reviewed the applicable charge-limit method and understands the controls required if the limit is approached or exceeded.
• Leak response plan is available for the job
  Confirm the team knows how to stop work, isolate the area, ventilate, and notify supervision if a refrigerant release occurs.

Pre-Job Safety Actions

• Energy sources isolated and locked out/tagged out as required
  Verify electrical and mechanical energy sources are isolated before service begins when the task requires de-energization.
• Emergency equipment is accessible
  Confirm fire extinguisher, first aid supplies, and any required emergency shutoff or communication devices are immediately accessible.
• Job briefing completed with all involved workers
  Verify the team reviewed hazards, controls, stop-work authority, and communication expectations before starting the task.
• Inspector signature
  Signature of the person completing the pre-job hazard analysis.