3-PAGE VECTOR A4 STUDIO

2026 EPA Part 84 Refrigerant Leak Rate Calculators (30 Presets)

Select your refrigerant and equipment preset below to pre-load factory charges, GWP values, and EPA repair thresholds:

R-410A • GWP 2088 R-410A 5-Ton Commercial Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 5-Ton Commercial Rooftop Unit (RTU) charged with 16 lbs 8 oz (16.50 lbs) of R-410A (GWP 2088, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 1 lbs 10 oz (1.65 lbs) in 12 months (Rolling Average) or 0 lbs 7 oz (0.41 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-410A • GWP 2088 R-410A 7.5-Ton Packaged Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 7.5-Ton Packaged Rooftop Unit (RTU) charged with 22 lbs 8 oz (22.50 lbs) of R-410A (GWP 2088, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 2 lbs 4 oz (2.25 lbs) in 12 months (Rolling Average) or 0 lbs 9 oz (0.55 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-410A • GWP 2088 R-410A 10-Ton Dual-Circuit Commercial RTU — EPA Part 84 Leak Rate Calculator & Repair Clock For a 10-Ton Dual-Circuit Commercial RTU charged with 31 lbs 0 oz (31.00 lbs) of R-410A (GWP 2088, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 3 lbs 2 oz (3.10 lbs) in 12 months (Rolling Average) or 0 lbs 12 oz (0.76 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-410A • GWP 2088 R-410A Commercial Walk-In Freezer Split System — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Freezer Split System charged with 24 lbs 0 oz (24.00 lbs) of R-410A (GWP 2088, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 4 lbs 13 oz (4.80 lbs) in 12 months (Rolling Average) or 1 lbs 3 oz (1.18 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-410A • GWP 2088 R-410A Commercial Walk-In Cooler (Medium-Temp) — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Cooler (Medium-Temp) charged with 18 lbs 8 oz (18.50 lbs) of R-410A (GWP 2088, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 3 lbs 11 oz (3.70 lbs) in 12 months (Rolling Average) or 0 lbs 15 oz (0.91 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-454B • GWP 466 R-454B 5-Ton Commercial Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 5-Ton Commercial Rooftop Unit (RTU) charged with 16 lbs 8 oz (16.50 lbs) of R-454B (GWP 466, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 1 lbs 10 oz (1.65 lbs) in 12 months (Rolling Average) or 0 lbs 7 oz (0.41 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-454B • GWP 466 R-454B 7.5-Ton Packaged Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 7.5-Ton Packaged Rooftop Unit (RTU) charged with 22 lbs 8 oz (22.50 lbs) of R-454B (GWP 466, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 2 lbs 4 oz (2.25 lbs) in 12 months (Rolling Average) or 0 lbs 9 oz (0.55 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-454B • GWP 466 R-454B 10-Ton Dual-Circuit Commercial RTU — EPA Part 84 Leak Rate Calculator & Repair Clock For a 10-Ton Dual-Circuit Commercial RTU charged with 31 lbs 0 oz (31.00 lbs) of R-454B (GWP 466, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 3 lbs 2 oz (3.10 lbs) in 12 months (Rolling Average) or 0 lbs 12 oz (0.76 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-454B • GWP 466 R-454B Commercial Walk-In Freezer Split System — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Freezer Split System charged with 24 lbs 0 oz (24.00 lbs) of R-454B (GWP 466, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 4 lbs 13 oz (4.80 lbs) in 12 months (Rolling Average) or 1 lbs 3 oz (1.18 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-454B • GWP 466 R-454B Commercial Walk-In Cooler (Medium-Temp) — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Cooler (Medium-Temp) charged with 18 lbs 8 oz (18.50 lbs) of R-454B (GWP 466, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 3 lbs 11 oz (3.70 lbs) in 12 months (Rolling Average) or 0 lbs 15 oz (0.91 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-32 • GWP 675 R-32 5-Ton Commercial Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 5-Ton Commercial Rooftop Unit (RTU) charged with 16 lbs 8 oz (16.50 lbs) of R-32 (GWP 675, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 1 lbs 10 oz (1.65 lbs) in 12 months (Rolling Average) or 0 lbs 7 oz (0.41 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-32 • GWP 675 R-32 7.5-Ton Packaged Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 7.5-Ton Packaged Rooftop Unit (RTU) charged with 22 lbs 8 oz (22.50 lbs) of R-32 (GWP 675, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 2 lbs 4 oz (2.25 lbs) in 12 months (Rolling Average) or 0 lbs 9 oz (0.55 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-32 • GWP 675 R-32 10-Ton Dual-Circuit Commercial RTU — EPA Part 84 Leak Rate Calculator & Repair Clock For a 10-Ton Dual-Circuit Commercial RTU charged with 31 lbs 0 oz (31.00 lbs) of R-32 (GWP 675, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 3 lbs 2 oz (3.10 lbs) in 12 months (Rolling Average) or 0 lbs 12 oz (0.76 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-32 • GWP 675 R-32 Commercial Walk-In Freezer Split System — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Freezer Split System charged with 24 lbs 0 oz (24.00 lbs) of R-32 (GWP 675, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 4 lbs 13 oz (4.80 lbs) in 12 months (Rolling Average) or 1 lbs 3 oz (1.18 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-32 • GWP 675 R-32 Commercial Walk-In Cooler (Medium-Temp) — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Cooler (Medium-Temp) charged with 18 lbs 8 oz (18.50 lbs) of R-32 (GWP 675, ASHRAE Class A2L), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 3 lbs 11 oz (3.70 lbs) in 12 months (Rolling Average) or 0 lbs 15 oz (0.91 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-404A • GWP 3922 R-404A 5-Ton Commercial Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 5-Ton Commercial Rooftop Unit (RTU) charged with 16 lbs 8 oz (16.50 lbs) of R-404A (GWP 3922, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 1 lbs 10 oz (1.65 lbs) in 12 months (Rolling Average) or 0 lbs 7 oz (0.41 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-404A • GWP 3922 R-404A 7.5-Ton Packaged Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 7.5-Ton Packaged Rooftop Unit (RTU) charged with 22 lbs 8 oz (22.50 lbs) of R-404A (GWP 3922, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 2 lbs 4 oz (2.25 lbs) in 12 months (Rolling Average) or 0 lbs 9 oz (0.55 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-404A • GWP 3922 R-404A 10-Ton Dual-Circuit Commercial RTU — EPA Part 84 Leak Rate Calculator & Repair Clock For a 10-Ton Dual-Circuit Commercial RTU charged with 31 lbs 0 oz (31.00 lbs) of R-404A (GWP 3922, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 3 lbs 2 oz (3.10 lbs) in 12 months (Rolling Average) or 0 lbs 12 oz (0.76 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-404A • GWP 3922 R-404A Commercial Walk-In Freezer Split System — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Freezer Split System charged with 24 lbs 0 oz (24.00 lbs) of R-404A (GWP 3922, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 4 lbs 13 oz (4.80 lbs) in 12 months (Rolling Average) or 1 lbs 3 oz (1.18 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-404A • GWP 3922 R-404A Commercial Walk-In Cooler (Medium-Temp) — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Cooler (Medium-Temp) charged with 18 lbs 8 oz (18.50 lbs) of R-404A (GWP 3922, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 3 lbs 11 oz (3.70 lbs) in 12 months (Rolling Average) or 0 lbs 15 oz (0.91 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-448A • GWP 1387 R-448A 5-Ton Commercial Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 5-Ton Commercial Rooftop Unit (RTU) charged with 16 lbs 8 oz (16.50 lbs) of R-448A (GWP 1387, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 1 lbs 10 oz (1.65 lbs) in 12 months (Rolling Average) or 0 lbs 7 oz (0.41 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-448A • GWP 1387 R-448A 7.5-Ton Packaged Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 7.5-Ton Packaged Rooftop Unit (RTU) charged with 22 lbs 8 oz (22.50 lbs) of R-448A (GWP 1387, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 2 lbs 4 oz (2.25 lbs) in 12 months (Rolling Average) or 0 lbs 9 oz (0.55 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-448A • GWP 1387 R-448A 10-Ton Dual-Circuit Commercial RTU — EPA Part 84 Leak Rate Calculator & Repair Clock For a 10-Ton Dual-Circuit Commercial RTU charged with 31 lbs 0 oz (31.00 lbs) of R-448A (GWP 1387, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 3 lbs 2 oz (3.10 lbs) in 12 months (Rolling Average) or 0 lbs 12 oz (0.76 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-448A • GWP 1387 R-448A Commercial Walk-In Freezer Split System — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Freezer Split System charged with 24 lbs 0 oz (24.00 lbs) of R-448A (GWP 1387, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 4 lbs 13 oz (4.80 lbs) in 12 months (Rolling Average) or 1 lbs 3 oz (1.18 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-448A • GWP 1387 R-448A Commercial Walk-In Cooler (Medium-Temp) — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Cooler (Medium-Temp) charged with 18 lbs 8 oz (18.50 lbs) of R-448A (GWP 1387, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 3 lbs 11 oz (3.70 lbs) in 12 months (Rolling Average) or 0 lbs 15 oz (0.91 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-134a • GWP 1430 R-134a 5-Ton Commercial Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 5-Ton Commercial Rooftop Unit (RTU) charged with 16 lbs 8 oz (16.50 lbs) of R-134a (GWP 1430, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 1 lbs 10 oz (1.65 lbs) in 12 months (Rolling Average) or 0 lbs 7 oz (0.41 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-134a • GWP 1430 R-134a 7.5-Ton Packaged Rooftop Unit (RTU) — EPA Part 84 Leak Rate Calculator & Repair Clock For a 7.5-Ton Packaged Rooftop Unit (RTU) charged with 22 lbs 8 oz (22.50 lbs) of R-134a (GWP 1430, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 2 lbs 4 oz (2.25 lbs) in 12 months (Rolling Average) or 0 lbs 9 oz (0.55 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-134a • GWP 1430 R-134a 10-Ton Dual-Circuit Commercial RTU — EPA Part 84 Leak Rate Calculator & Repair Clock For a 10-Ton Dual-Circuit Commercial RTU charged with 31 lbs 0 oz (31.00 lbs) of R-134a (GWP 1430, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 10% (Comfort Cooling (10% Max EPA Leak Rate)). Adding more than 3 lbs 2 oz (3.10 lbs) in 12 months (Rolling Average) or 0 lbs 12 oz (0.76 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-134a • GWP 1430 R-134a Commercial Walk-In Freezer Split System — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Freezer Split System charged with 24 lbs 0 oz (24.00 lbs) of R-134a (GWP 1430, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 4 lbs 13 oz (4.80 lbs) in 12 months (Rolling Average) or 1 lbs 3 oz (1.18 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test. R-134a • GWP 1430 R-134a Commercial Walk-In Cooler (Medium-Temp) — EPA Part 84 Leak Rate Calculator & Repair Clock For a Commercial Walk-In Cooler (Medium-Temp) charged with 18 lbs 8 oz (18.50 lbs) of R-134a (GWP 1430, ASHRAE Class A1), the 2026 EPA 40 CFR Part 84 maximum leak rate threshold is 20% (Commercial Refrigeration (20% Max EPA Leak Rate)). Adding more than 3 lbs 11 oz (3.70 lbs) in 12 months (Rolling Average) or 0 lbs 15 oz (0.91 lbs) within 90 days (Annualizing) triggers a mandatory 30-day repair clock and 10-day follow-up verification test.