Understanding A2L Refrigerants for Air Conditioners

ACHR News - 7. Safety Standards Specific values depend on equipment installed height, room height, and refrigerant LFL Increasing Severity Of Combustion Event Refrigerant Charge Quantity (mass) Not Allowed Air Recirculation + Mechanical Ventilation Air Recirculation No Safety Measure Room Size (floor area) ■ FIGURE 6: A2L refrigerant charge quality limits, ducted single split system. Purpose of Air Recirculation & Mechanical ventilation → Mix and dilute the released refrigerant to keep the average concentration below 25% of the LFL 25

View entire presentation